Add Sphinx to the tox build deps so that the sphinx tests are run.  Add Python3.4 as well, and support for passing extra positional arguments to py.test
Add Sphinx to the tox build deps so that the sphinx tests are run.  Add Python3.4 as well, and support for passing extra positional arguments to py.test

embray/astropy_helpers,dpshelio/astropy-helpers,larrybradley/astropy-helpers,bsipocz/astropy-helpers,embray/astropy_helpers,dpshelio/astropy-helpers,embray/astropy_helpers,astropy/astropy-helpers,embray/astropy_helpers,Cadair/astropy-helpers,bsipocz/astropy-helpers,larrybradley/astropy-helpers,astropy/astropy-helpers,Cadair/astropy-helpers,larrybradley/astropy-helpers,bsipocz/astropy-helpers