freedom for all axes somewhat operational
better block comparison but still not right
left right forward back, seems solid enough
offset up for height
fix forward/back collision vectors
fix collision label names
acceptable sliding for a particular face normal
degrees of freedom based sliding
compute head positions too
Merge branch 'master' of git://github.com/maxogden/voxel-engine into constraint-collision
Merge pull request #2 from substack/constraint-collision

constraint collision