pithos: Add snf-image support
pithos: Add default Archipelago config file
Add new constant ArchipelagoConfFile for the default Archipelagoconfig file. Set ArchipelagoConfFile after calling setupXsegPoolfunction.
pithos: pep8 fixes
pithos: Move Xseg Pool initialization
Move Xseg Object Pool initialization to hashfiler module
pithos: Remove unused import objpool
pithos: Add glue code for Archipelago XSEG Object Pool and Gunicorn
pithos: Add monkey patch for making XSEG Request go green
pithos: Add configuration file for Gunicorn
Make workers delegate only one XSEG port pool
pithos: Add Gevent Gunicorn Worker for Archipelago