Preserve transparency when loading from a file

Fix #7148 - again :)
use intl's native normalizer_normalize() in case the module is available
Step one, open guest layout for different styles.

Conflicts:
	core/templates/layout.guest.php

Step one, open guest layout for different styles.
remove icon styles from apps.css as they are in icons.css
use same shade of grey for active navigation items and hovering
remove obsolete language files
remove bottom: 0 to prevent the menu form overlapping the whole element. This happens if a folder has entries, the menu expands to the very bottom and overlaps all entries and makes them impossible to click

fix input width which was changed likely with the icon PR

use calc because firefox and chrome have different scrollbar widths which causes firefox to push the button into the next row while everything is well in chrome

add normal width for IE8
Add timeout to user and group deletion notification

Added timeout in DeleteHandler to auto-delete after a delay.

Fixed issue where OC.Notification.hide() was called twice in a row when
deleting multiple entries, causing the second notification to disappear.
Fixed issue where "undo" click event handler was registered multiple
times when calling setNotifications() twice.
Added JS unit tests for the DeleteHandler class.

Refix undo users, groups feature

Timeout is now cleared in cancel().

Fixed click handler name for "undo" to be able to work with multiple
DeleteHandler instances (in our case one for users and one for groups)
so that there is no conflict.
Merge pull request #10960 from owncloud/use-intl-module-master

use intl's native normalizer_normalize() in case the module is available
Merge pull request #11026 from owncloud/apps-styles-update

Apps styles update
add y to with-aspect naming schema
add phpdoc
Merge pull request #10109 from owncloud/issue_#9793_guestlayout

Step one, open guest layout for different styles.
Fix unexisting class and PHPDoc

You can't add int here as hint...
add some minor fixes for IE8
Merge pull request #11060 from owncloud/rmobslang

remove obsolete language files
Merge pull request #11023 from owncloud/users-fixundo

Add timeout to user and group deletion notification.
Merge pull request #11040 from owncloud/fix-app-menu-overlapp

Remove bottom: 0 from app-navigation-entry-utils to prevent the utils form overlapping the whole element....
[tx-robot] updated from transifex
Merge pull request #10362 from owncloud/preserve_transparency_on_fileload

Preserve transparency when loading from a file