Fixed otrs.DeleteCache.pl returns error state if cache was empty.
This fixed bug#9726.
Visual improvement of settings widget on the dashboard.
Added Marc's new Email button to Bounce and Compose

Also the exclamation mark was removed; the button no longer
reads 'Send Email!' but it is now 'Send Email'.
Removed non-used module Date::Pcalc
Fixed uninitialized value warning when creating agents.
Use TimeObject instead of Date::Pcalc for backup.pl

Also made script work for PostgreSQL databases with passwords.
Changed the response content type to be more SOAP 1.2 friendly.

--HG--
extra : source : 7f6ec43c2021b54e7f2db480720c62ee03b6e5b1
Merge branch 'master' of git.otrs.com:otrs/otrs
Added minimum perl version warning to UPGRADING.
Strip off unwanted version information.
Fixed UT, on Oracle the database was 2 chars: "XE".
No need to instantiate new ticketobject here.
Added missing EncodeObject.
Added fontawesome also to the customer interface; fixed an issue with css for jstree when Loader is enabled.
Harmonize Max handling

between _BuildSelectionDataRefCreate and Ascii2Html
Added upgrading section.
Added fields explanation.
Merge branch 'layout-max-handling' of https://github.com/moritz/otrs
Avoid pathologically slow query on mysql 5.1, thanks to Moritz Lenz!

Squashed commit of the following:

commit 13b5de7eaebbc624b8f6f69ac6f4c20eefb51946
Author: Moritz Lenz <mlenz@noris.net>
Date:   Tue Sep 17 11:25:57 2013 +0200

    Test for $Ticket{SolutionTime}

commit e584ad23062092fa220df916dbd5f51a118230d3
Author: Moritz Lenz <mlenz@noris.net>
Date:   Tue Sep 17 11:14:54 2013 +0200

    Handle case of NULL result for MAX(create_time)

commit b0afa6173047f4bef05bcd285a0e5e33e236bc0b
Author: Moritz Lenz <mlenz@noris.net>
Date:   Mon Sep 16 10:53:00 2013 +0200

    Avoid pathologically slow query on mysql 5.1

    With the old SQL, mysql 5.1 uses the index for create_time, which basically
    causes a full table scan. (The query optimizer in mysql 5.5. does better
    though).

    With the new sql, the index for ticket_id is used instead, which is much
    faster.
Merge remote-tracking branch 'upstream/master' into otrs-master