basic unittesting
run unittests with setup.py test
add parser unittests
add simple console unittests
replace unittest with unittest2
only import unittest2 for python2.6
add setup.py test command
sympy.Real -> sympy.Float
fix setup.py import mathics circular dependency
use unittest2 for test discovery
fix setup.py execfile comment
use unit2 discover for travis python2.6 unittest discovery
use dumb TERM during pexpect console tests
Merge pull request #161 from sn6uv/unittest

Unittest