add separate user preferences area
fix hover menus
make backdrops optional
add some web client settings
show context when navigating
rename channel category to channel folder
Merge branch 'master' of https://github.com/MediaBrowser/MediaBrowser into upstream-master

Conflicts:
	MediaBrowser.WebDashboard/dashboard-ui/scripts/indexpage.js
Added notification list page

Totally basic but gets the job done