Large PR -- Adding Tests, fixing a few bugs that revealed, and cleaning up small nits#2

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benlower merged 7 commits intotableau:masterfrom

t8y8:master

May 12, 2016

Commits on May 10, 2016

PEP8-ify some files so future editors will be happy. Also add a test file and add some test cases for a help method I plan to update in the next commit. I made _is_valid_file a static method since …
t8y8
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Refactor _is_valid_file to be mroe pythonic and extensible if we add more filetypes in the future. No more C++ code in the python :)
t8y8
committed

Commits on May 11, 2016