Menu bar misc

**READY FOR MERGE**

* show tree status for watched repos
* tree info menu for each repo on ``watched repo`` bar, and in ``repos`` panel
* fix persisting watched repo list
* tree status updated every 2 minutes

Also:
* moved the ``/models`` directory to top-level sibling with ``/services``
* new logger with ``classname`` and configurable ``blacklist`` and ``whitelist``
* made some ``directives`` into just ``ng-include``s to reduce code.