Related objects titles are not being inserted
Fix #4165 by accessing to sfRadPlugin properties

Squashed commit of the following:

commit 4f2d2cd112c5c8dc2dddc038dab9d5d6d29a5c4f
Author: José Raddaoui Marín <raddaouimarin@gmail.com>
Date:   Wed Mar 27 04:47:52 2013 +0100

    Change how some fields are taken for validation
Use __(), fixes #4865
Replace Qubit fixtures with ICA-AtoM

Conflicts:
	data/fixtures/menus.yml
	data/fixtures/staticPages.yml
Remove version from Spanish translation
Update release task and package.xml
Update default meta-title
Avoid error if a field doesn't exist, fixes #4879

Squashed commit of the following:

commit 94739ec246e8ef85025531308f09e8d5721e55bc
Author: Jesús García Crespo <jesus@sevein.com>
Date:   Tue Apr 2 18:04:18 2013 -0700

    Check if the field exists before using it

commit c4fe5751f92ea69c99fa3bb6b9cdd0e873417cbd
Author: Jesús García Crespo <jesus@sevein.com>
Date:   Tue Apr 2 18:03:48 2013 -0700

    Add isset magic method to Document
Fix typo
Update copyright statement to 2013, fixes #4847

Conflicts:
	COPYRIGHT
Allow to reset accession number to 0, fixes #4604
Use net_gearman instead of pecl/gearman, fixes #4767

This commit replaces sfGearmanPlugin with a simpler daemon task based in
net_gearman (pure PHP) instad of pecl/gearman, wich was being a source
of problem between our users for different reasons, e.g. some incompabilities
between pecl/gearman, libgearman and gearmand causing errors in the worker.

Squashed commit of the following:

commit f020112dc7fe88502e22da2f3ffc9604b8fce46c
Author: Jesús García Crespo <jesus@sevein.com>
Date:   Fri Mar 8 08:34:43 2013 -0800

    Use the event dispatcher to log events

commit 4f3242adbeb3a9fbc63c5fdd52e4e4bb69a28b7b
Author: Jesús García Crespo <jesus@sevein.com>
Date:   Thu Mar 7 21:29:25 2013 -0800

    Adapt worker to be compatible with net_gearman

commit 199163bae609d296100fda9eebb4cf4729a046d3
Author: Jesús García Crespo <jesus@sevein.com>
Date:   Thu Mar 7 21:28:55 2013 -0800

    Add simple gearman daemon task

commit be6a28b4d19cda25f6dfdddc7c84d7daf2d577a1
Author: Jesús García Crespo <jesus@sevein.com>
Date:   Thu Mar 7 21:28:37 2013 -0800

    Autoload net_gearman recursively

commit d4c8e055aa6cdfd68d363dfe01dff5fad4a8e2f7
Author: Jesús García Crespo <jesus@sevein.com>
Date:   Thu Mar 7 21:28:02 2013 -0800

    Update gearman.yml schema

commit dade534f7be5d01534991ad453a9db350ce3933c
Author: Jesús García Crespo <jesus@sevein.com>
Date:   Thu Mar 7 21:27:47 2013 -0800

    Update config to not load sfGearmanPlugin

commit 2d3630a5164a9fdfc1b2c56262759622f1d9eb20
Author: Jesús García Crespo <jesus@sevein.com>
Date:   Thu Mar 7 21:27:00 2013 -0800

    Update init script

commit f2689d399b2a17893658c9d6b10ccc52574753a7
Author: Jesús García Crespo <jesus@sevein.com>
Date:   Thu Mar 7 21:26:48 2013 -0800

    Remove sfGearmanPlugin, based in pecl/gearman

commit abcdf72981e71f81b1a9bfb32885eaa85c33ad54
Author: Jesús García Crespo <jesus@sevein.com>
Date:   Thu Mar 7 21:26:24 2013 -0800

    Add net_gearman
Small fixes, refs #4767
Pull mcantelon's improvements in METS import
Stability tweaks in the SWORD worker, fixes #4182

Changes introduced by this commit:
- The worker class destroys the ZSL object after a job is done to make
  sure that the PHP process doesn't keep the index locked.
- Keeps the MySQL connection alive by pinging the server every ~30 secs
  since AtoM's default db connection is persistent and they seem impossible
  to be closed.
- Stop forking the worker when a job starts, the memory leak seem to be
  solved now.

Squashed commit of the following:

commit e1ef03a95851b3ec32113553c01e706cb28de698
Author: Jesús García Crespo <jesus@sevein.com>
Date:   Tue Apr 2 00:43:56 2013 -0700

    Stop replicating the worker

    If I remember well, I used to fork the worker because the application
    was leaking memory. It's a lot better now and If we find more issues
    with memory we should be able to diagnose it with xdebug and fix it.

commit 4c395ab22a64118cc42b8aab59af6a3d4dbf2dd8
Author: Jesús García Crespo <jesus@sevein.com>
Date:   Tue Apr 2 00:35:15 2013 -0700

    Close index in the worker, refs #4182

commit 424350ae6397399f4314a0d8994557e142f99a5d
Author: Jesús García Crespo <jesus@sevein.com>
Date:   Tue Apr 2 00:28:04 2013 -0700

    Try to keep the db connection alive

    Instead of trying to close it. It seems impossible to close PDO
    connections when they are intended to be persistent. I'm not clear
    on what would happen if I try to restablish a connection that has
    timed out. Pinging the server periodically seems a reasonable
    solution for now.
Update gearman worker upstart service
Fix issue with PHP 5.3 in gearmanWorkerTask

The use of $this in anonymous functions is only available in PHP 5.4.
This commit fixes the problem importing the counter to the closure's
scope, passing it by reference.