Made list single linked
Removed legacy code
Cleaned up
Updated copyright
Removed unnecessary dependencies.
Merge branch 'master' of github.com:OptimalBits/ground into rights_management
Added a TODO
implemented rights manager
Renamed SyncHub to Hub
Added an error module
Fixed API to not relay on session Ids, and added a swap method.
Updated the socket backend to use the new ServerError type.
Handle INVALID_SESSION kind of errors.
Removed obsolete console.log
Added the rights manager to the test server
Fixes in session unit tests.