Implemented first version of a slidable navigation bar.
Merge branch 'master' into feature-slidingnavigation-mab-master

Conflicts:
	Kernel/Output/HTML/Standard/AgentNavigationBar.dtl
	var/httpd/htdocs/skins/Agent/default/css/Core.Header.css
Replaced characters by font awesome icons.
Tidied.
Fixed bug#10209 - When opening tree selection dialog, the search field should get the focus.
Improved HTML filter.
Fixed: Clicking the cancel button in the Add Web services screen results in an error no matter what data was filled in (bug#8656).
Fixed: Locked tickets don't unlock when customer closes ticket (bug#9678).
Squashed commit of the following:

commit 189ffd15be3cc1dbe85eedac40c27b4cae0f5c96
Author: s7design <otrs@s7designcreative.com>
Date:   Wed Jan 29 18:52:20 2014 +0100

    [Bug 9678]

    Locked tickets don't unlock when customer closes ticket

    Added code for set lock parameter of ticket when check state of ticket; on close state parameter lock is setting to unlock
Fixed bug#9868 - Queues in popup box are not sorted by alphabetical order.
Follow-up: Also fixed inline actions for medium view (bug#10019).
Fixed: DynamicField Search-Function in CustomerFrontend is not working (bug#10207).
Fixed: Oracle ignores NLS_DATE_FORMAT set in environment (bug#8729).

Conflicts:
	CHANGES.md
Fixed: subject shows only 30 characters (bug#10163).
Fixed: Expired cookie bug in customer interface. (bug#10193).

Conflicts:
	CHANGES.md
Fixed: Dashbord: Widget DefaultColumns is not working (bug#10211).
Fixed: Move mask in new window: Note is not required (bug#6742).
Fixed: GenericAgent - Ticket-Action should be renamed to Ticket-Attribute (bug#6671).
Fixed: My tickets & Company tickets in 3.3.4 (bug#10212).
Updated Polsih translation
Fixed bug#4512 - HTMLUtils ToAscii forces line breake on fixed line-length 78.