PEP8 Standards Fixes

[Dmchale92]

--------- BEGIN META VARIABLES -------- Project : dropbox-sdk-python Task : PEP8 Standards Fixes Done : 3-16-17 --------- END META VARIABLES --------

[Dmchale92]

Hey Matt, my pleasure. Broke up the revision retrieval code, and fixed a subsequent E261 error. Also added E1101 to tox.ini, it looks like MESSAGES CONTROL for .pylintrc already has locally-disabled disabled.

[posita]

As an aside, ez_setup.py comes from elsewhere (formerly from PEAK, now from PyPA). We might consider removing it altogether in the future and leave bootstrapping setuptools up to the installer. I think most modern versions of Python already include it anyway.

[rogebrd]

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