Fix PIDFile location.

config/uwsgi.ini

@@ -3,7 +3,7 @@ socket = 127.0.0.1:9001
 wsgi-file = app.py
 callable = app
 virtualenv = venv
-safe-pidfile = /run/calefaction.pid
+safe-pidfile = /run/calefaction/pid
 
 processes = 1
 threads = 4