Major code cleanup.

- Make all internal functions "static".
- Make sure each module's header and implementation file match.
- Remove all library-like functionality from main.c, so only
  the actual frontend remains in main.c.
- Add C++ brackets to all header files.

That effectively leaves the various module C files as something like
an "avrdude library", with main.c being the currently only frontend
program for that library.  In theory, it should be possible to write
different frontends using the same library backend functions though.


git-svn-id: svn://svn.savannah.nongnu.org/avrdude/trunk/avrdude@722 81a1dc3b-b13d-400b-aceb-764788c761c2

avrpart.c

@@ -162,7 +162,7 @@ int avr_get_output(OPCODE * op, unsigned char * res, unsigned char * data)
 }
 
 
-char * avr_op_str(int op)
+static char * avr_op_str(int op)
 {
   switch (op) {
     case AVR_OP_READ        : return "READ"; break;
@@ -182,7 +182,7 @@ char * avr_op_str(int op)
 }
 
 
-char * bittype(int type)
+static char * bittype(int type)
 {
   switch (type) {
     case AVR_CMDBIT_IGNORE  : return "IGNORE"; break;
@@ -449,7 +449,7 @@ void list_parts(FILE * f, char * prefix, LISTID parts)
 }
 
 
-char * reset_disp_str(int r)
+static char * reset_disp_str(int r)
 {
   switch (r) {
     case RESET_DEDICATED : return "dedicated";
@@ -459,7 +459,7 @@ char * reset_disp_str(int r)
 }
 
 
-char * pin_name(int pinno)
+static char * pin_name(int pinno)
 {
   switch (pinno) {
     case PIN_AVR_RESET : return "RESET";