adds backend script which can be run as a cronjob every n minutes to generate new json files for google calendars

- database updated to save google credentials
- database updated to save json calendar information
- json still saved as a json file under userinfo/<user.id>/calendarevents.json

server/googleHandler.py

@@ -86,7 +86,7 @@ def verifyResponse():
     flask.session['credentials'] = credentials_to_dict(credentials)
 
     session = flow.authorized_session()
-    return session 
+    return session, credentials_to_dict(credentials)
 
 
 def get_google_provider_cfg():
@@ -103,7 +103,7 @@ def calendarsFromDb():
     pyCalendars = []
     for calendar in calendars:
         name = calendar.name
-        calId = calendar.calendar_id
+        # calId = calendar.calendar_id
         toggle = calendar.toggle
         color = calendar.color