Fix some cases of variables being used uninitialized. Also some unused

variables, writeable strings and dangerously shadowed variables.

index(), gamma(), exp() and y0() are POSIX functions and using those
names can cause namespace confusion.

A number of C files were missing the final newline required by ANSI C
and some versions of GCC are pedantic enough to complain about this.

These changes simply the scons build, allowing us to get rid of
filterWarnings which is simply more trouble than it's worth.


git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@5574 8ced0084-cf51-0410-be5f-012b33b47a6e

Externals/WiiUseSrc/Src/guitar_hero_3.c

@@ -57,8 +57,6 @@ static void guitar_hero_3_pressed_buttons(struct guitar_hero_3_t* gh3, short now
  *	@return	Returns 1 if handshake was successful, 0 if not.
  */
 int guitar_hero_3_handshake(struct wiimote_t* wm, struct guitar_hero_3_t* gh3, byte* data, unsigned short len) {
-	int offset = 0;
-
 	/*
 	 *	The good fellows that made the Guitar Hero 3 controller
 	 *	failed to factory calibrate the devices.  There is no