wire tests in setup.py

[arekm]

Would be nice to see tests wired up into setup.py, so typical tests, like in other python packages, run would work. Currently:

+ /usr/bin/python2 setup.py build '--build-base=build-2' test
usage: setup.py [global_opts] cmd1 [cmd1_opts] [cmd2 [cmd2_opts] ...]
   or: setup.py --help [cmd1 cmd2 ...]
   or: setup.py --help-commands
   or: setup.py cmd --help

error: invalid command 'test'

[autocracy]

In progress