Fix highlighting of query menu items
Remove wp#index-specific JS

… dealing with query select drop down behavior and highlighting of query menu items.
Highlight main menu item if no query has been selected
Add unit tests for query menu item directive
Merge branch 'dev' into fix/query-menu-item-highlighting

Conflicts:
	app/assets/javascripts/angular/openproject-app.js
Merge pull request #1494 from opf/fix/query-menu-item-highlighting

Fix/query menu item highlighting