adds ability to control what values (if any) for avg_rt will be sent if no requests were done, fixes #212
prepare for uWSGI 1.9.5 release
prepare for language independent home concept
added chdir,setapp and sethome routing actions
added setfile routing instruction and improved uwsgi_get_var
prepare for moving sqlite to a dedicated plugin
added sqlite3 plugin
completed sqlite3 plugin
Merge pull request #213 from prymitive/carbon_avg_policy

adds ability to control what values (if any) for avg_rt will be sent if ...