requestsexceptions is now part of the shade project, so update
adminstrivia things. We should declare 3.5 support, and not 3.4 or 3.3,
since they're untested. We should also remove the infra exclusions since
it's no longer under that umbrella (also, no code changes were required)
Change-Id: Idc1a5449c6ed5a790083a63dfbd5815fbc9dd650
requestsexceptions supports python3 just fine, but the build files did
not indicate this. More importantly, wheel=universal was not set, so it
was just uploading a py2 wheel to pypi. Silly wheels.
Change-Id: I4992eebe18193329699409ecfee9036b67dfbac3
Closes-Bug: 1541616
Takashi Kajinami