Receive geo-data from the client

[blazern]

Each of the places where ModeratorTaskTable.insert is called by a user request, lat and lon should be acquired (if not yet).
Geo processing of the new moderator task should be immediately asked from the ModeratorTaskGeoDataWorker (and the coords should be passed).

The geodata_source column of the moderator_task_geodata table should be set to FROM_USER.

Create tasks of sending the coords in the mobile client Github project. The coords should be of the center of the viewport.