Merge pull request #7 from koteth/master

refactoring + autoresize + multiple comparison
General cleanup, absolute imports, and lint clean.
Add travis CI configuration.
Remove matplotlib from requirements and lint clean setup.py.
Get numpy and scipy from system packages in travis.
Fix pyssim script in setup.py.
Forget python 2.6, add 3.2 and 3.3, and add lint checks.
Python 3 compatibility fixes.
Use correct travis multiline script and disable no-member because numpy.
Remove 3.3 because numpy is broken on travis and add test validation.
Fix unnecessary resizing.
Update README.
Fix YAML parsing error.
Add CHANGELOG and update version to 0.2.
Merge remote-tracking branch 'upstream/master'