Fix collections indentation
standard_layout.html.twig: Do not display the group label if no item in group is available
Merge pull request #1701 from pulzarraider/patch-2

standard_layout.html.twig: Do not display the group label if no item in group is available
Added some more test
Merge pull request #1705 from chrootLogin/patch-1

Add more tests for class_regex in BaseAdminTest
Improve select2

* Add ``allowClear`` option for select with empty option
* Add popover support
Merge pull request #1707 from EmmanuelVella/patch-13

Improve select2
Fix #1706
Added test for ExportAction
Added sonata_page_content block to standard_layout.html.twig
# This is a combination of 2 commits.
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# This is a combination of 2 commits.
# The first commit's message is:

Create recipe_sortable_listing.rst

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Update recipe_sortable_listing.rst

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fix typo in bundle name
Fixed typos
Merge pull request #1714 from pborreli/patch-3

Fixed typos
Fixed typo
Merge pull request #1715 from pborreli/patch-4

Fixed typo
Merge pull request #1703 from nicolasricci/master

adding a new recipe to the cookbook to add a sortable feature to admin listing
- add sortable listing image
Merge pull request #1716 from nicolasricci/master

add sortable listing image
Updated catalan & spanish translations
Merge pull request #1718 from xmontana/master

Updated catalan & spanish translations