Initial geogit module functionality.
Refactored GeoGitTransaction and added an event for merge conflicts.
Added global options for toggling the use of port and proxy in server service.
Moved repos to public.
Fixed some issues with the handling of variables in the diff panel.
Added a function to check for geogit layers.
GeoGitService cleanup.
Prevented duplicate repos being added, remove repos when they are no longer needed
Added a dialog service.
Added pulldown controller and service. some styling updates.  Added merges to diff panel.