TreePropSheet: use the explorer's theme in the options page tree.
Backported from TortoiseSVN (http://code.google.com/p/tortoisesvn/source/detail?r=17532)
Cosmetic: use TRACE instead of TRACE0.

TRACE0 is deprecated.
Updated Basque translation.
Update .gitignore
update SoundTouch to v1.7.1 r170
update patches
checkyear.js: update to current year and add more filetypes to check
bump copyright year to 2013
update ffmpeg (n0.8-17442-g7d66bc7)