Step one, open guest layout for different styles.

Apps styles update

use intl's native normalizer_normalize() in case the module is available

Do not double decode values

* owncloud/do-not-double-decode:
  Do not double decode values

Remove passing by reference to allow for proper GC

content size checks are not valid for LOCK

content size checks are not valid for LOCK

The garbage collector in PHP 5.3.10 does not properly release the file
handle when calling fclose() due to the fact that it is passed by
reference.
This has the side-effect of preventing file locks to be released as well
when the files_locking app is enabled.

This fix removes the useless passing by reference and now the file
handle and file lock are freed properly.

This fixes the double scrollbars issue

Return false in case the passed values are not of type string

fix nojavascript message alignment

Fix icons

fix notification visibility, fix #11016

Fixes https://github.com/owncloud/core/issues/11012

Merge pull request #11006 from owncloud/addCustomHex2BinImplementationBecauseSupporting53IsSomethingReallyReallyCoolAndWeAreObviouslySomeOfTheCoolGuys

Add custom hex2bin implementation for 5.3

Add X-UA-Compatible to all templates

Conflicts:
	core/templates/layout.guest.php

Step one, open guest layout for different styles.

Refresh if maintenance mode is over

Replaces https://github.com/owncloud/core/pull/10850

repair search lucene before installing

Fixes https://github.com/owncloud/core/issues/11004

Load apps in tests, fixes #9666