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
enable observe mode on P
only ensure followed chunks if observing
accept player id from server for self
server sends nicks to clients
show player name in PnP
show player name when observing
fix
reworked how observe keys work
static width and height