WSGI container usage needs some docs

[larsmans]

@nucflash, would you care to write up a one sentence-summary of how to run xtas.webserver within uwsgi? (I just merged your patch as b0d9d40, thanks!)

[nucflash]

Sure. Here's the a simple command to use for running xtas via uwsgi:

uwsgi -s <host>:<port> --virtualenv <xtas_virtual_env> --enable-threads -w xtas.webserver

I also have .ini files for running xtas as a vassal for uwsgi Emperor, and an init.d script for starting up Emperor. I can share them if you find them useful.

[larsmans]

Cool, that would be very useful!