Removes Borders from the left navigation.
app styles: remove bottom padding. Settings should be last in list instead of permanent
more whitespace WIP
more whitespace WIP 2
more small whitespace fixes for the app list
more whitespace for user menu
prevent ugly selection effect on accidental selection, fix #3713
make delete icon less intrusive again, only on hover
use background image instead of img for Files delete icon
remove unnecessary tipsy for Files delete
use new delete icon for deleted files as well
fix delete button not showing in IE8
Explicit ie8 fallback
Merge branch 'master' into delete-fix

Conflicts:
	core/css/styles.css
fix css
remove unused code; use jquery
css for button no longer needed
Replace delete icon with spinner
fix loading.gif size for both upload and deletion, force visiblity
reduce z-index of settings popup, fix #4212