Only require one subclass to make hasActiveSubClass return true
Add unit test for hasActiveSubclass when only one subclass
bug with variable widget_type

Variable “widget_type” does not exist in SonataAdminBundle:Form:filter_admin_fields.html.twig
* http://stackoverflow.com/questions/23004015/variable-widget-type-does-not-exist-in-sonataadminbundleformfilter-admin-fie

* http://stackoverflow.com/questions/22985378/sonata-admin-filters-should-looks-like-set-of-checkboxes-but-got-error
Update SonataAdminBundle.en.xliff

It was missing the variable %object% in message_delete_confirmation translation from SonataAdminBundle:CRUD:delete.html.twig
Update SonataAdminBundle.pt_BR.xliff

It was missing the variable %object% in message_delete_confirmation translation from SonataAdminBundle:CRUD:delete.html.twig
Update add_block.html.twig

At the original add_block.html.twig file it was used ROLE_SUPER_ADMIN, but in the standard_layout.html.twig it is used the ROLE_SONATA_ADMIN.

I suppose that the ROLE_SONATA_ADMIN should be the global role.

At my application broke the presentation when the user has the ROLE_SONATA_ADMIN but not the ROLE_SUPER_ADMIN.
- updated croatian translation
Merge branch 'master' of git://github.com/sonata-project/SonataAdminBundle
added tab_menu template
made tab_menu_template configurable
added tab_menu_navbar_header block
Fixed the actions list for cases when the create action is unavailable
fix .box-body to fit content
[childAdmin] append the parent's id only if exist.
change location of previous fix
Added head_title block to standard_layout.html.twig

Change the name of the block to sonata_head_title
added documentation
Register event extension
Add class for batch list action dropdown
'decimal' is not allowed

Decimal is not an option for a Form in Symfony and when using it with FormMapper it raises this exception.

```
Uncaught PHP Exception Symfony\Component\Form\Exception\InvalidArgumentException: "Could not load type "decimal"" at /var/www/releases/20140521095534/vendor/symfony/symfony/src/Symfony/Component/Form/FormRegistry.php line 89 {"exception":"[object] (Symfony\\Component\\Form\\Exception\\InvalidArgumentException: Could not load type \"decimal\" at /var/www/releases/20140521095534/vendor/symfony/symfony/src/Symfony/Component/Form/FormRegistry.php:89)"} []
```