Initial attempt to fix import issues caused by verutil.py implementation.
Removed unneeded version test for FreeCAD 0.13.
Added an alternate path for Linux systems that install FreeCAD at /usr/bin instead of /usr/local.
Added explicit support for Mac OS.
Made major improvements to the Mac OS import setup code thanks to troubleshooting from @DrRob.
Merge pull request #55 from dcowden/import-fix

yep, its definitely cleaner code.