diff --git a/js/reveal.min.js b/js/reveal.min.js
index 675ddd5..bf14305 100644
--- a/js/reveal.min.js
+++ b/js/reveal.min.js
@@ -5,47 +5,4 @@
  * 
  * Copyright (C) 2012 Hakim El Hattab, http://hakim.se
  */
-var Reveal=(function(){var j="#reveal .slides>section",a="#reveal .slides>section.present>section",e=!!("ontouchstart" in window),k=0,c=0,G={controls:false,progress:false,history:false,loop:false,mouseWheel:true,rollingLinks:true,transition:"default",theme:"default"},N=[],d={},H=document.body.style.perspectiveProperty!==undefined||document.body.style.WebkitPerspective!==undefined||document.body.style.MozPerspective!==undefined||document.body.style.msPerspective!==undefined||document.body.style.OPerspective!==undefined,l=document.body.style.transformProperty!==undefined||document.body.style.WebkitTransform!==undefined||document.body.style.MozTransform!==undefined||document.body.style.msTransform!==undefined||document.body.style.OTransform!==undefined,v=0,y=0;
-function h(P){if(!l&&!H){document.body.setAttribute("class","no-transforms");return;}d.wrapper=document.querySelector("#reveal");d.progress=document.querySelector("#reveal .progress");
-d.progressbar=document.querySelector("#reveal .progress span");d.controls=document.querySelector("#reveal .controls");d.controlsLeft=document.querySelector("#reveal .controls .left");
-d.controlsRight=document.querySelector("#reveal .controls .right");d.controlsUp=document.querySelector("#reveal .controls .up");d.controlsDown=document.querySelector("#reveal .controls .down");
-document.addEventListener("keydown",M,false);document.addEventListener("touchstart",w,false);window.addEventListener("hashchange",t,false);d.controlsLeft.addEventListener("click",n(x),false);
-d.controlsRight.addEventListener("click",n(i),false);d.controlsUp.addEventListener("click",n(r),false);d.controlsDown.addEventListener("click",n(A),false);
-q(G,P);if(H===false){G.transition="linear";}if(G.controls){d.controls.style.display="block";}if(G.progress){d.progress.style.display="block";}if(G.transition!=="default"){d.wrapper.classList.add(G.transition);
-}if(G.theme!=="default"){d.wrapper.classList.add(G.theme);}if(G.mouseWheel){document.addEventListener("DOMMouseScroll",m,false);document.addEventListener("mousewheel",m,false);
-}if(G.rollingLinks){D();}C();if(navigator.userAgent.match(/(iphone|ipod|android)/i)){document.documentElement.style.overflow="scroll";document.body.style.height="120%";
-window.addEventListener("load",K,false);window.addEventListener("orientationchange",K,false);}}function q(Q,P){for(var R in P){Q[R]=P[R];}}function n(P){return function(Q){Q.preventDefault();
-P.call();};}function K(){setTimeout(function(){window.scrollTo(0,1);},0);}function M(Q){if(Q.target.contentEditable!="inherit"||Q.shiftKey||Q.altKey||Q.ctrlKey||Q.metaKey){return;
-}var P=false;switch(Q.keyCode){case 80:case 33:I();P=true;break;case 78:case 34:u();P=true;break;case 72:case 37:x();P=true;break;case 76:case 39:i();P=true;
-break;case 75:case 38:r();P=true;break;case 74:case 40:A();P=true;break;case 36:E(0);P=true;break;case 35:E(Number.MAX_VALUE);P=true;break;case 32:J()?L():u();
-P=true;break;case 13:if(J()){L();P=true;}break;}if(P){Q.preventDefault();}else{if(Q.keyCode===27&&H){if(J()){L();}else{B();}Q.preventDefault();}}}function w(S){if(S.touches.length===1){if(S.target.tagName.toLowerCase()==="a"||S.target.tagName.toLowerCase()==="img"){return;
-}S.preventDefault();var Q={x:S.touches[0].clientX,y:S.touches[0].clientY};var P=window.innerWidth*0.3;var R=window.innerHeight*0.3;if(Q.x<P){x();}else{if(Q.x>window.innerWidth-P){i();
-}else{if(Q.y<R){r();}else{if(Q.y>window.innerHeight-R){A();}}}}b();}}function m(P){clearTimeout(v);v=setTimeout(function(){var Q=P.detail||-P.wheelDelta;
-if(Q>0){u();}else{I();}},100);}function t(P){C();}function D(){if(H){var Q=document.querySelectorAll("#reveal .slides section a:not(.image)");for(var R=0,P=Q.length;
-R<P;R++){var S=Q[R];if(S.textContent&&!S.querySelector("img")&&(!S.className||!S.classList.contains(S,"roll"))){S.classList.add("roll");S.innerHTML='<span data-title="'+S.text+'">'+S.innerHTML+"</span>";
-}}}}function B(){d.wrapper.classList.add("overview");var P=Array.prototype.slice.call(document.querySelectorAll(j));for(var U=0,S=P.length;U<S;U++){var R=P[U],Y="translateZ(-2500px) translate("+((U-k)*105)+"%, 0%)";
-R.setAttribute("data-index-h",U);R.style.display="block";R.style.WebkitTransform=Y;R.style.MozTransform=Y;R.style.msTransform=Y;R.style.OTransform=Y;R.style.transform=Y;
-if(!R.classList.contains("stack")){R.addEventListener("click",z,true);}var X=Array.prototype.slice.call(R.querySelectorAll("section"));for(var T=0,Q=X.length;
-T<Q;T++){var W=X[T],V="translate(0%, "+((T-c)*105)+"%)";W.setAttribute("data-index-h",U);W.setAttribute("data-index-v",T);W.style.display="block";W.style.WebkitTransform=V;
-W.style.MozTransform=V;W.style.msTransform=V;W.style.OTransform=V;W.style.transform=V;W.addEventListener("click",z,true);}}}function L(){d.wrapper.classList.remove("overview");
-var S=Array.prototype.slice.call(document.querySelectorAll("#reveal .slides section"));for(var R=0,P=S.length;R<P;R++){var Q=S[R];Q.style.WebkitTransform="";
-Q.style.MozTransform="";Q.style.msTransform="";Q.style.OTransform="";Q.style.transform="";Q.removeEventListener("click",z);}b();}function J(){return d.wrapper.classList.contains("overview");
-}function z(P){if(J()){P.preventDefault();L();k=this.getAttribute("data-index-h");c=this.getAttribute("data-index-v");b();}}function O(Q,S){var U=Array.prototype.slice.call(document.querySelectorAll(Q)),V=U.length;
-if(V){if(G.loop){S%=V;if(S<0){S=V+S;}}S=Math.max(Math.min(S,V-1),0);for(var T=0;T<V;T++){var P=U[T];if(J()===false){var W=Math.abs((S-T)%(V-3))||0;P.style.display=W>3?"none":"block";
-}U[T].classList.remove("past");U[T].classList.remove("present");U[T].classList.remove("future");if(T<S){U[T].classList.add("past");}else{if(T>S){U[T].classList.add("future");
-}}if(P.querySelector("section")){U[T].classList.add("stack");}}U[S].classList.add("present");var R=U[S].getAttribute("data-state");if(R){N=N.concat(R.split(" "));
-}}else{S=0;}return S;}function b(){var S=N.concat();N.length=0;k=O(j,k);c=O(a,c);stateLoop:for(var R=0,P=N.length;R<P;R++){for(var Q=0;Q<S.length;Q++){if(S[Q]===N[R]){S.splice(Q,1);
-continue stateLoop;}}document.documentElement.classList.add(N[R]);o(N[R]);}while(S.length){document.documentElement.classList.remove(S.pop());}if(G.progress){d.progressbar.style.width=(k/(document.querySelectorAll(j).length-1))*window.innerWidth+"px";
-}if(J()){B();}p();clearTimeout(y);y=setTimeout(g,1500);o("slidechanged",{indexh:k,indexv:c});}function p(){var P=f();[d.controlsLeft,d.controlsRight,d.controlsUp,d.controlsDown].forEach(function(Q){Q.classList.remove("enabled");
-});if(P.left){d.controlsLeft.classList.add("enabled");}if(P.right){d.controlsRight.classList.add("enabled");}if(P.up){d.controlsUp.classList.add("enabled");
-}if(P.down){d.controlsDown.classList.add("enabled");}}function f(){var P=document.querySelectorAll(j);var Q=document.querySelectorAll(a);return{left:k>0,right:k<P.length-1,up:c>0,down:c<Q.length-1};
-}function C(){var P=window.location.hash.slice(2).split("/");k=parseInt(P[0])||0;c=parseInt(P[1])||0;E(k,c);}function g(){if(G.history){var P="/";if(k>0||c>0){P+=k;
-}if(c>0){P+="/"+c;}window.location.hash=P;}}function o(Q,P){var R=document.createEvent("HTMLEvents",1,2);R.initEvent(Q,true,true);q(R,P);d.wrapper.dispatchEvent(R);
-}function s(){if(document.querySelector(a+".present")){var Q=document.querySelectorAll(a+".present .fragment:not(.visible)");if(Q.length){Q[0].classList.add("visible");
-return true;}}else{var P=document.querySelectorAll(j+".present .fragment:not(.visible)");if(P.length){P[0].classList.add("visible");return true;}}return false;
-}function F(){if(document.querySelector(a+".present")){var Q=document.querySelectorAll(a+".present .fragment.visible");if(Q.length){Q[Q.length-1].classList.remove("visible");
-return true;}}else{var P=document.querySelectorAll(j+".present .fragment.visible");if(P.length){P[P.length-1].classList.remove("visible");return true;}}return false;
-}function E(Q,P){k=Q===undefined?k:Q;c=P===undefined?c:P;b();}function x(){if(J()||F()===false){k--;c=0;b();}}function i(){if(J()||s()===false){k++;c=0;
-b();}}function r(){if(J()||F()===false){c--;b();}}function A(){if(J()||s()===false){c++;b();}}function I(){if(F()===false){if(f().up){r();}else{var P=document.querySelector("#reveal .slides>section.past:nth-child("+k+")");
-if(P){c=(P.querySelectorAll("section").length+1)||0;k--;b();}}}}function u(){if(s()===false){f().down?A():i();}}return{initialize:h,navigateTo:E,navigateLeft:x,navigateRight:i,navigateUp:r,navigateDown:A,addEventListener:function(Q,R,P){(d.wrapper||document.querySelector("#reveal")).addEventListener(Q,R,P);
-},removeEventListener:function(Q,R,P){(d.wrapper||document.querySelector("#reveal")).removeEventListener(Q,R,P);}};})();
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+var Reveal=(function(){var HORIZONTAL_SLIDES_SELECTOR='#reveal .slides>section',VERTICAL_SLIDES_SELECTOR='#reveal .slides>section.present>section',IS_TOUCH_DEVICE=!!('ontouchstart'in window),indexh=0,indexv=0,config={controls:false,progress:false,history:false,loop:false,mouseWheel:true,rollingLinks:true,transition:'default',theme:'default',swipeDist:30},state=[],dom={},supports3DTransforms=document.body.style['perspectiveProperty']!==undefined||document.body.style['WebkitPerspective']!==undefined||document.body.style['MozPerspective']!==undefined||document.body.style['msPerspective']!==undefined||document.body.style['OPerspective']!==undefined,supports2DTransforms=document.body.style['transformProperty']!==undefined||document.body.style['WebkitTransform']!==undefined||document.body.style['MozTransform']!==undefined||document.body.style['msTransform']!==undefined||document.body.style['OTransform']!==undefined,mouseWheelTimeout=0,writeURLTimeout=0;function initialize(options){if(!supports2DTransforms&&!supports3DTransforms){document.body.setAttribute('class','no-transforms');return;}dom.wrapper=document.querySelector('#reveal');dom.progress=document.querySelector('#reveal .progress');dom.progressbar=document.querySelector('#reveal .progress span');dom.controls=document.querySelector('#reveal .controls');dom.controlsLeft=document.querySelector('#reveal .controls .left');dom.controlsRight=document.querySelector('#reveal .controls .right');dom.controlsUp=document.querySelector('#reveal .controls .up');dom.controlsDown=document.querySelector('#reveal .controls .down');document.addEventListener('keydown',onDocumentKeyDown,false);document.addEventListener('touchstart',onDocumentTouchStart,false);document.addEventListener('touchmove',onDocumentTouchMove,false);document.addEventListener('touchend',onDocumentTouchEnd,false);window.addEventListener('hashchange',onWindowHashChange,false);dom.controlsLeft.addEventListener('click',preventAndForward(navigateLeft),false);dom.controlsRight.addEventListener('click',preventAndForward(navigateRight),false);dom.controlsUp.addEventListener('click',preventAndForward(navigateUp),false);dom.controlsDown.addEventListener('click',preventAndForward(navigateDown),false);extend(config,options);if(supports3DTransforms===false){config.transition='linear';}if(config.controls){dom.controls.style.display='block';}if(config.progress){dom.progress.style.display='block';}if(config.transition!=='default'){dom.wrapper.classList.add(config.transition);}if(config.theme!=='default'){dom.wrapper.classList.add(config.theme);}if(config.mouseWheel){document.addEventListener('DOMMouseScroll',onDocumentMouseScroll,false);document.addEventListener('mousewheel',onDocumentMouseScroll,false);}if(config.rollingLinks){linkify();}readURL();if(navigator.userAgent.match(/(iphone|ipod|android)/i)){document.documentElement.style.overflow='scroll';document.body.style.height='120%';window.addEventListener('load',removeAddressBar,false);window.addEventListener('orientationchange',removeAddressBar,false);}}function extend(a,b){for(var i in b){a[i]=b[i];}}function preventAndForward(delegate){return function(event){event.preventDefault();delegate.call();}}function removeAddressBar(){setTimeout(function(){window.scrollTo(0,1);},0);}function onDocumentKeyDown(event){if(event.target.contentEditable!='inherit'||event.shiftKey||event.altKey||event.ctrlKey||event.metaKey)return;var triggered=false;switch(event.keyCode){case 80:case 33:navigatePrev();triggered=true;break;case 78:case 34:navigateNext();triggered=true;break;case 72:case 37:navigateLeft();triggered=true;break;case 76:case 39:navigateRight();triggered=true;break;case 75:case 38:navigateUp();triggered=true;break;case 74:case 40:navigateDown();triggered=true;break;case 36:navigateTo(0);triggered=true;break;case 35:navigateTo(Number.MAX_VALUE);triggered=true;break;case 32:overviewIsActive()?deactivateOverview():navigateNext();triggered=true;break;case 13:if(overviewIsActive()){deactivateOverview();triggered=true;}break;}if(triggered){event.preventDefault();}else if(event.keyCode===27&&supports3DTransforms){if(overviewIsActive()){deactivateOverview();}else{activateOverview();}event.preventDefault();}}var touchStart={}var gesture=false;function onDocumentTouchStart(event){touchStart={x:event.touches[0].clientX,y:event.touches[0].clientY};if(event.target.tagName.toLowerCase()==='a'||event.target.tagName.toLowerCase()==='img'){}else{event.preventDefault();}}function onDocumentTouchMove(event){event.preventDefault();if(!gesture){var touch={x:event.touches[0].clientX,y:event.touches[0].clientY};if((touch.x-touchStart.x)>config.swipeDist){gesture=true;navigateLeft();}else if((touch.x-touchStart.x)<-config.swipeDist){gesture=true;navigateRight();}else if((touch.y-touchStart.y)>config.swipeDist){gesture=true;navigateUp();}else if((touch.y-touchStart.y)<-config.swipeDist){gesture=true;navigateDown();}}}function onDocumentTouchEnd(event){if(!gesture){if(event.target.tagName.toLowerCase()==='a'||event.target.tagName.toLowerCase()==='img'){return;}var wt=window.innerWidth*0.3;var ht=window.innerHeight*0.3;if(touchStart.x<wt){navigateLeft();}else if(touchStart.x>window.innerWidth-wt){navigateRight();}else if(touchStart.y<ht){navigateUp();}else if(touchStart.y>window.innerHeight-ht){navigateDown();}}gesture=false;event.preventDefault();}function onDocumentMouseScroll(event){clearTimeout(mouseWheelTimeout);mouseWheelTimeout=setTimeout(function(){var delta=event.detail||-event.wheelDelta;if(delta>0){navigateNext();}else{navigatePrev();}},100);}function onWindowHashChange(event){readURL();}function linkify(){if(supports3DTransforms){var nodes=document.querySelectorAll('#reveal .slides section a:not(.image)');for(var i=0,len=nodes.length;i<len;i++){var node=nodes[i];if(node.textContent&&!node.querySelector('img')&&(!node.className||!node.classList.contains(node,'roll'))){node.classList.add('roll');node.innerHTML='<span data-title="'+node.text+'">'+node.innerHTML+'</span>';}};}}function activateOverview(){dom.wrapper.classList.add('overview');var horizontalSlides=Array.prototype.slice.call(document.querySelectorAll(HORIZONTAL_SLIDES_SELECTOR));for(var i=0,len1=horizontalSlides.length;i<len1;i++){var hslide=horizontalSlides[i],htransform='translateZ(-2500px) translate('+((i-indexh)*105)+'%, 0%)';hslide.setAttribute('data-index-h',i);hslide.style.display='block';hslide.style.WebkitTransform=htransform;hslide.style.MozTransform=htransform;hslide.style.msTransform=htransform;hslide.style.OTransform=htransform;hslide.style.transform=htransform;if(!hslide.classList.contains('stack')){hslide.addEventListener('click',onOverviewSlideClicked,true);}var verticalSlides=Array.prototype.slice.call(hslide.querySelectorAll('section'));for(var j=0,len2=verticalSlides.length;j<len2;j++){var vslide=verticalSlides[j],vtransform='translate(0%, '+((j-indexv)*105)+'%)';vslide.setAttribute('data-index-h',i);vslide.setAttribute('data-index-v',j);vslide.style.display='block';vslide.style.WebkitTransform=vtransform;vslide.style.MozTransform=vtransform;vslide.style.msTransform=vtransform;vslide.style.OTransform=vtransform;vslide.style.transform=vtransform;vslide.addEventListener('click',onOverviewSlideClicked,true);}}}function deactivateOverview(){dom.wrapper.classList.remove('overview');var slides=Array.prototype.slice.call(document.querySelectorAll('#reveal .slides section'));for(var i=0,len=slides.length;i<len;i++){var element=slides[i];element.style.WebkitTransform='';element.style.MozTransform='';element.style.msTransform='';element.style.OTransform='';element.style.transform='';element.removeEventListener('click',onOverviewSlideClicked);}slide();}function overviewIsActive(){return dom.wrapper.classList.contains('overview');}function onOverviewSlideClicked(event){if(overviewIsActive()){event.preventDefault();deactivateOverview();indexh=this.getAttribute('data-index-h');indexv=this.getAttribute('data-index-v');slide();}}function updateSlides(selector,index){var slides=Array.prototype.slice.call(document.querySelectorAll(selector)),slidesLength=slides.length;if(slidesLength){if(config.loop){index%=slidesLength;if(index<0){index=slidesLength+index;}}index=Math.max(Math.min(index,slidesLength-1),0);for(var i=0;i<slidesLength;i++){var slide=slides[i];if(overviewIsActive()===false){var distance=Math.abs((index-i)%(slidesLength-3))||0;slide.style.display=distance>3?'none':'block';}slides[i].classList.remove('past');slides[i].classList.remove('present');slides[i].classList.remove('future');if(i<index){slides[i].classList.add('past');}else if(i>index){slides[i].classList.add('future');}if(slide.querySelector('section')){slides[i].classList.add('stack');}}slides[index].classList.add('present');var slideState=slides[index].getAttribute('data-state');if(slideState){state=state.concat(slideState.split(' '));}}else{index=0;}return index;}function slide(){var stateBefore=state.concat();state.length=0;indexh=updateSlides(HORIZONTAL_SLIDES_SELECTOR,indexh);indexv=updateSlides(VERTICAL_SLIDES_SELECTOR,indexv);stateLoop:for(var i=0,len=state.length;i<len;i++){for(var j=0;j<stateBefore.length;j++){if(stateBefore[j]===state[i]){stateBefore.splice(j,1);continue stateLoop;}}document.documentElement.classList.add(state[i]);dispatchEvent(state[i]);}while(stateBefore.length){document.documentElement.classList.remove(stateBefore.pop());}if(config.progress){dom.progressbar.style.width=(indexh/(document.querySelectorAll(HORIZONTAL_SLIDES_SELECTOR).length-1))*window.innerWidth+'px';}if(overviewIsActive()){activateOverview();}updateControls();clearTimeout(writeURLTimeout);writeURLTimeout=setTimeout(writeURL,1500);dispatchEvent('slidechanged',{'indexh':indexh,'indexv':indexv});}function updateControls(){var routes=availableRoutes();[dom.controlsLeft,dom.controlsRight,dom.controlsUp,dom.controlsDown].forEach(function(node){node.classList.remove('enabled');})if(routes.left)dom.controlsLeft.classList.add('enabled');if(routes.right)dom.controlsRight.classList.add('enabled');if(routes.up)dom.controlsUp.classList.add('enabled');if(routes.down)dom.controlsDown.classList.add('enabled');}function availableRoutes(){var horizontalSlides=document.querySelectorAll(HORIZONTAL_SLIDES_SELECTOR);var verticalSlides=document.querySelectorAll(VERTICAL_SLIDES_SELECTOR);return{left:indexh>0,right:indexh<horizontalSlides.length-1,up:indexv>0,down:indexv<verticalSlides.length-1};}function readURL(){var bits=window.location.hash.slice(2).split('/');indexh=parseInt(bits[0])||0;indexv=parseInt(bits[1])||0;navigateTo(indexh,indexv);}function writeURL(){if(config.history){var url='/';if(indexh>0||indexv>0)url+=indexh;if(indexv>0)url+='/'+indexv;window.location.hash=url;}}function dispatchEvent(type,properties){var event=document.createEvent("HTMLEvents",1,2);event.initEvent(type,true,true);extend(event,properties);dom.wrapper.dispatchEvent(event);}function nextFragment(){if(document.querySelector(VERTICAL_SLIDES_SELECTOR+'.present')){var verticalFragments=document.querySelectorAll(VERTICAL_SLIDES_SELECTOR+'.present .fragment:not(.visible)');if(verticalFragments.length){verticalFragments[0].classList.add('visible');return true;}}else{var horizontalFragments=document.querySelectorAll(HORIZONTAL_SLIDES_SELECTOR+'.present .fragment:not(.visible)');if(horizontalFragments.length){horizontalFragments[0].classList.add('visible');return true;}}return false;}function previousFragment(){if(document.querySelector(VERTICAL_SLIDES_SELECTOR+'.present')){var verticalFragments=document.querySelectorAll(VERTICAL_SLIDES_SELECTOR+'.present .fragment.visible');if(verticalFragments.length){verticalFragments[verticalFragments.length-1].classList.remove('visible');return true;}}else{var horizontalFragments=document.querySelectorAll(HORIZONTAL_SLIDES_SELECTOR+'.present .fragment.visible');if(horizontalFragments.length){horizontalFragments[horizontalFragments.length-1].classList.remove('visible');return true;}}return false;}function navigateTo(h,v){indexh=h===undefined?indexh:h;indexv=v===undefined?indexv:v;slide();}function navigateLeft(){if(overviewIsActive()||previousFragment()===false){indexh--;indexv=0;slide();}}function navigateRight(){if(overviewIsActive()||nextFragment()===false){indexh++;indexv=0;slide();}}function navigateUp(){if(overviewIsActive()||previousFragment()===false){indexv--;slide();}}function navigateDown(){if(overviewIsActive()||nextFragment()===false){indexv++;slide();}}function navigatePrev(){if(previousFragment()===false){if(availableRoutes().up){navigateUp();}else{var previousSlide=document.querySelector('#reveal .slides>section.past:nth-child('+indexh+')');if(previousSlide){indexv=(previousSlide.querySelectorAll('section').length+1)||0;indexh--;slide();}}}}function navigateNext(){if(nextFragment()===false){availableRoutes().down?navigateDown():navigateRight();}}return{initialize:initialize,navigateTo:navigateTo,navigateLeft:navigateLeft,navigateRight:navigateRight,navigateUp:navigateUp,navigateDown:navigateDown,addEventListener:function(type,listener,useCapture){(dom.wrapper||document.querySelector('#reveal')).addEventListener(type,listener,useCapture);},removeEventListener:function(type,listener,useCapture){(dom.wrapper||document.querySelector('#reveal')).removeEventListener(type,listener,useCapture);}};})();
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