Correct overzealous detection of buffer overruns. It was making the sound crackle constantly, like a record player. Most audible with earphones.
Add the experimental branch's files to .gitignore.
Release 1.26.
Fix an oddity in the sound when returning from a global mute. Fixes music loading in Super Mario World.
Merge branch 'master' into experimental

Conflicts:
	README.md
	source/nds/gui.c
Include BassAceGold's modified SDK as of 2013-01-31. Include overclocking options up to level 18, 456 MHz.