Load logging settings from the paste(_local)?.ini configuration file.

We should make the mediagoblin deployment setup a "lower footprint" by default. There are two easy ways to do this:

• Switch mediagoblin paste/wsgi deployment from mutliple processes to threaded. This requires #369 be resolved first.
• Switch default celery deployment from multiprocess to gevent. This will save memory and reduce time between the initialization of each process.

Right now if you have celery separated (processing is not synchronous) the PuSH push will happen *before* your processing ends up finishing. This is because the code actually happens in the view. Instead, we should move this code to the end of the processing code.

This is probably a fairly easy ticket, but I'm somewhat hesitant to mark it as "bitesized".