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.
Removed stray file. TT must be installed via CPAN because of Template::Stash::XS.
Fixed an issue with a missing LayoutObject in the DF drivers.
Removed dead code.
Tidied.
Updated for OTRSCodePolicy
Fixed: Cache may remain incorrectly in SearchProfile (bug#10147).

Squashed commit of the following:

commit 695db39465ff81e5d2fb227e4178a6d6c257cd2f
Author: s7design <otrs@s7designcreative.com>
Date:   Mon Jan 27 16:29:47 2014 +0100

    Bug #10147
     Cache may remain incorrectly in SearchProfile

    Add in SearchProfil.t- check deleting SearchProfileList

commit ff2b0288eb8026485e2961c73daec3118943d3e8
Author: s7design <otrs@s7designcreative.com>
Date:   Mon Jan 27 15:28:17 2014 +0100

    Bug #10147

    Cache may remain incorrectly in SearchProfile

    We added code for deletition of Cached Login session value on line 255.
    This line is clear value from key session file and file also.
Fixed: On PhoneOutbound articles,  the FROM field shows Customer ID instead Agent ID (bug#9692).
Fixed: Events Ticket Calendar not working (bug#10130).
Fixed typo.
Fixed: Ticket merge action does not notify the owner of the existing ticket (bug#10196).
Fixed: GenericInterface: Mandatory TimeUnits can't be 0 (bug#10205).
Tidied.
Added expample for locical OR-Expression in LDAP-Filter.
Fixed comment typo.
Fixed bug#10209 - When opening tree selection dialog, the search field should get the focus.
Improved HTML filter.