YUV working for gst + pixelFormat use for ofPixels
Merge branch 'feature-YUV' of /media/arturo/elements/openFrameworks into feature-YUV
ofGLUtils: fixes for gles
ofPixels: removed channels variable, all allocations based on pixelFormat
Merge branch 'develop' of github.com:openframeworks/openFrameworks into feature-YUV
added cairo forumla; apothecary: build and lib dest dirs are now settable
remove ffi
Merge branch 'develop' of github.com:openframeworks/openFrameworks into feature-YUV

Conflicts:
	libs/openFrameworks/video/ofGstVideoGrabber.cpp
osx & ios builds now working; apothecary: added verbose flag, added FORUMLA_TYPES array, various path fixes; forumlas: cleaned up/fleshed out TODOs, expanded per formula build system info in comments, lots of little fixes here and there
move command handling code into doCommand()
separated update steps into individual commands, clean/dist-clean renamed to remove/remove-lib/remove-all
added clean function to formulas
cleaned comments
apothecary now correctly handles addon formulas (in ofxAddon/scripts/formulas); added readme; reorganized to match OF folder layout
added project root readme
only set xcode dev root when running on osx
various small tweaks
added mingw detection
tess2 formula: check OS instead of TYPE when downloading
Merge branch 'master' of github.com:danomatika/apothecary