Previously the local uwsgi server mode was using uwsgi in http mode.
This was unessecary and actually not recommend by the uwsgi docs [1][2]
This is because http mode starts a frontend http process that forwards
requests to the workers running the python code. This is done for the
largely the same reasons we're using apache as a proxy and is
unnecessary. http-socket mode doesn't do this and just exposes the
workers as an http interface to the proxy. (in our case apache)

[1] http://uwsgi-docs.readthedocs.io/en/latest/HTTP.html#http-sockets
[2] http://uwsgi-docs.readthedocs.io/en/latest/ThingsToKnow.html

Change-Id: I5671687c8083fa4bdee066c07b083a0f00be532b