Fixed sorting in tree overlay.
Revert "Fixed sorting in tree overlay."

This reverts commit dd3bc254ce52a975f8f5ade60efe9aff6643ff54.
Added translatable strings and made display consistent with other cases.
Fixed wrong function call.
Also allow queries for database meta information.

Conflicts:
	Kernel/Modules/AdminSelectBox.pm
Fixed broken notification due to double-wrap.
Improved unittests.
Fixed problem with the sendmail backend in email tests.
Fixed issue with date fields and datepicker.
Fixed some issues with separated fields.
Fixed an issue with failing uploads if the widget is initially collapsed.
Updated PostgreSQL connection fix for ObjectManager.
Show full version information only on mouseover.
Changed URL.
Added product name to title.
Switched postmaster tests to the object manager.
Added missing trash icon.
Merge remote-tracking branch 'upstream/master' into otrs-master