Merge branch 'nightly' into python3

# Conflicts:
#	plexpy/database.py
#	plexpy/datafactory.py
#	plexpy/libraries.py
#	plexpy/users.py

plexpy/api2.py

@@ -308,7 +308,7 @@ class API2(object):
     def sql(self, query=''):
         """ Query the Tautulli database with raw SQL. Automatically makes a backup of
             the database if the latest backup is older then 24h. `api_sql` must be
-            manually enabled in the config file.
+            manually enabled in the config file while Tautulli is shut down.
 
             ```
             Required parameters: