fixed version bug

setup.py

 from setuptools import setup
-from unitgrade import __version__ as version
+from unitgrade.version import __version__
 setup(
     name='unitgrade',
-    version=version,
+    version=__version__,
     packages=['unitgrade', 'cs101courseware_example'],
     url='https://lab.compute.dtu.dk/tuhe/unitgrade',
     license='Apache',

unitgrade/__init__.py

-__version__ = "0.1.1"
+from unitgrade.version import __version__
 import os
 # DONT't import stuff here since install script requires __version__
 

unitgrade/version.py

+__version__ = "0.1.1"
\ No newline at end of file