fix detection/fallback for multisampling, etc, during GL context creation
extract method CreateWindowAndContext in WindowSDL to simplify setup
Update Spanish.txt
allow pickling Lua strings that contain zero bytes (ie, arbitrary blobs)
Merge remote-tracking branch 'johnbartholomew/fix-pickle-blobs'
Merge remote-tracking branch 'johnbartholomew/sdl2-fixes'
Merge remote-tracking branch 'gudadantza/patch-39'