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
remove IDE / OS specific ignore rules

These have nothing to do in a repository, they should be ignored
globally. What if everyone does the same with their custom IDE / OS ?
Fix AdminLTE http/https reference
deleteAction should use redirectTo to determine redirect url for easy
overriding.
Merge pull request #2180 from VermontDesignWorks/use_redirect_to_in_delete_action

deleteAction should use redirectTo to determine redirect url for easy overriding.
Update SonataAdminBundle.nl.xliff

Added missing Dutch translations.
Merge pull request #2193 from NoScopie/patch-5

Update SonataAdminBundle.nl.xliff
Wrong target file

Wrong target file
fix typo
Merge pull request #2202 from lowki93/documentation_improvements

fix typo
Revert "Always add 'form-control' class to select boxes"

This reverts commit 796ebd23c5243bdb9f16ab9c9bfe7dad92b86d51.
fix issue with multiple fields identifier
Fix command for SF2.5
Merge pull request #2067 from BupycHuk/patch-2

bug with variable widget_type
choose route builder depending on the manager type

sonata.admin.route.path_info_slashes is a more sensible default if you
use PHPCR, because since Document ids can contain slashes, the regex
that capture it must be able to tolerate these slashes, which is the
main goal of this route builder.
Merge pull request #2215 from greg0ire/choose_route_builder_wisely

Choose route builder wisely
Merge pull request #2200 from karol-gontarski/patch-1

Wrong target file
stay 5.3-compatible
Merge pull request #2216 from greg0ire/choose_route_builder_wisely

stay 5.3-compatible
Improve create and update process