Patch Set 7: No score

This patch set contains fixes for synchronization with tags and minor fixes in localizations.
It also contains two new features:
* user can select with branch should be treat as source and with one as destination
* using 'synchronize with' dialog user can define does local uncommited/unstaged changes should be shown in synchronization view or not. Local changes are always hidden when synchronization is launched from 'repositories view' or 'synchronize wizard'

Things that I've plan to include in next patch set:
* I've notice that for some reasons in synchronize view are included files that doesn't differs, this needs to be investigated and fixed.
* add grouping changes in commits in synchronization view so that we can merge changes on commit level.