Fix Bug 938214, retore new context menu in file views
marged change from ui
Further tweaks and enhancements based on feedback
Shorten menu titles
Merge branch 'ui' into bug938214-restore-context-menus-file-view

Conflicts:
	dxr/static/js/dxr.js
Merge pull request #202 from ossreleasefeed/bug938214-restore-context-menus-file-view

Bug938214 restore context menus file view