import Server in __init__
fix tox.ini
clean up pytest conf
refactor logging stuff into separate module
pep8 fix
refactor logging file contents into its own module

--HG--
extra : amend_source : 46b236508d22721dcc86ee7c23c961a2e2681576
LocalServer [untested]
oops, merging
use task, not callback, to run LocalServer.mainloop
add vrpn.cfg
receiver.py started