platform-dependent changes
fix a couple of typos in the example code
add an example for working with the camera in opencv
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 branch 'task/JNAPC-431' of https://github.com/sightmachine/pymba into sightmachine-task/JNAPC-431