neck.vert shader multiplies 'time' by '10', but time is float and 10 is integer. It's not critical error (it works on nvidia drivers AFAIK), but is not valid by GLSL spec, and fails to compile on some drivers (e.g. mesa master).

How to fix: change '10' to '10.0'.

Fixed, thank you! http://github.com/stump/fofix/commit/568fb3aeca646458be9d59bbe96fedc4a3e29e21