follow picture-in-picture
follow fix
Merge branch 'master' into follow

Conflicts:
	main.c
Merge branch 'master' into follow

Conflicts:
	main.c
observe mode
observe fixes
observe fix
more attrib members for all program uniforms, etc.
major refactoring
delete_chunks
updated README.md
Merge branch 'master' of https://github.com/fogleman/Craft into mods-everywhere

Conflicts:
	main.c

updates for refactor