First pass at making pymba a pip installable module.
1) Moved all the source-code under a new folder "pyvimba".  Yes I changed the name.  Feel free to change it back
2) Added initial CHANGES.txt, MANIFEST.in, LICENSE, README.txt
3) Move opencv_example.py to "tests" directory
Add some tests
test_systemfeature.py is broken because I think this is invalid API.
fix typo
Rename directory to pymba instead of pyvimba.
Fix test_systemfeatures.py
re-format code to fixup whitespace
put back Nate's original file
Merge pull request #2 from sightmachine/task/JNAPC-431

Task/jnapc 431