Rename Tasque.Core namespace to Tasque.Client
Adjust BackendManager for use without Mono.Addins
Move client-only relevant classes to Tasque.Client.* namespaces
Update Tasque.Data namespace according to changes in Tasque.Client
Reorganize tests according to library changes
Update .gitignore
Update sln file
Update POTFILES according to libtasque changes
Mark some strings for translation. Fixes Bug #701839
Fix Dummy backend
WiP
WiP2