BUG: LooseFix did not treat 2.0 >= 2.00

Latest python-gflags reports it's version number as 2.0 on my Windows 8 machine (Anaconda 64-bit, installed python-gflags via pip). When compared against the string '2.0.0' this resulted in the code to think that the version was not new enough and subsequent calls to to_gbq() failed.