(Wayland context) update/convert
(gfx_context) Fix warnings
(OSX) Use CGLUpdateContext for OSX 10.7 and up
Update SDK
(Input Settings) Hook up Device Index
Get rid of log spam in input option setting
(Settings) action_toggle_bind_setting - guard against going below 0 when
pressing left
Fixup setting_data_action_toggle_bind_device
Implement action Start for User Index
(Makefile.win) Add libretro-sdk/include to INCDIR
(Emscripten Makefile) Add libretro-sdk/include to INCDIR
(Android context driver) Convert
Get rid of unused variables
Fixing the way that RA gets the home directory due to iOS8 change

Annoyingly it still works in the iOS8 simulator without this change.