Merge pull request #30 from VeloxAmbitum/master

Fixed math_round
Added Austin to Contributor list.
Added Austin to libmath modifiers list.
Returns now work in blocks. Fixed #29

Signed-off-by: Christian Gunderman <christian@sonofboss.cwru.edu>
Merge branch 'master' of github.com:gundermanc/gunderscript
Fixed compiler warnings.

Signed-off-by: Christian Gunderman <christian@sonofboss.cwru.edu>