Overriding location, city, region, latitude, longitude should be work for all actions

[mattab]

Currently overriding location, city, region, latitude and longitude will work for new visit, but not for further actions by a same visitor. Requested in pull request #204

[mattab]

In c34d63e: Fixes #4565 Add overrideLocation call in returning visitors, during further actions by same user

[tsteur]

In 56bddb5: refs #4565 do not allow logme for any super user

[tsteur]

In 80f254d: refs #4565 migrate config super user to database