Flowers, mushrooms and air are no longer collidable.
Reworked collision to use g_BlockIsSolid
Moved cTracer::SetValues to be an internal function because it is only ever used in cTracer::Trace.
Removed SetValues from Bindings.cpp.
Added some commenting to explain what each function does in cTracer.
Added more documentation. Changed cTracer::Trace to return a bool instead of an int because it was only returning 1 or 0 anyways.
cTracer can now handle mob sight.
Added missing check for a_LineOfSight
More documentation.
Merge pull request #312 from SamJBarney/master

Flowers, mushrooms and air are no longer collidable.