change line 139 of cpp/gpp_python_common.cpp

[rmurray2]

change line 139 of cpp/gpp_python_common.cpp to:

 for (auto i = 0l; i < num_threads; ++i) {

See https://github.com/Yelp/MOE/issues/440

[suntzu86]

I'm somewhat confused as to why there's 250+ changes over 291 files :O master way out of date or something? Git doing something dumb?

For just 1 line I'll update it, don't worry about this anymore :)

[rmurray2]

It's probably something I did incorrectly; that was my first PR. Probably should have just let you do it :)