rename unittestgui to unittest
WIP:  separate classes into TestCase and unittestgui
checkpoint
provide TestCaseGui sublcass
Merge branch 'master' into unittest
remove debug prints from dir
$gbl should be var $gbl to make it local
fixup main to print a message
more progress... small bugfix to issubclass (it failed when testing if a  module was a subclass ), fix to __import__ to preserve Sk.globals when importing/compiling a module written in Python, unittest.main() now works.
importStar was missing the globals parameter.  Also clean up __name__ issues in importStar.  Remove unnecessary name manipulation code from __import__
cleanup prints
Merge pull request #221 from bnmnetp/unittest

Unittest -- hearing no objections...