Specify _LZMA_UINT32_IS_ULONG to compile on Xcode 6.0.1
Fix Xcode 6.0.1 crash when accessing the source control menu because of empty entry
Fix path for build folder, needed for codesigning of dylibs to actually work
Fix resources paths/references: overlays, icons/launch images and modules
Sync with libretro/RetroArch
Merge pull request #1149 from crazyquark/master

Xcode 6.0.1 fixes