Merge pull request #1 from satan6/master

Basic keyframe parsing
Tidies up a little

* libOL_test now does some basic error handling.
* Removes stray .gitignore
* Wraps zlib include in extern "C" declaration
Makes '17' a constant (the chunk header lengths)
Mastery and item parsing
Merge remote-tracking branch 'upstream/master'

Conflicts:
	src/libOL_test/main.cpp