add SonataDatagridBundle
fix some issue with page bundle integration
Added datepicker
Merge pull request #371 from Bladrak/datepicker

Added datepicker
Fix some shop features
Merge pull request #372 from grosenbaum/update-features

Update features
update assets
fix some behat tests
Merge branch '2.3-develop' of github.com:sonata-project/sandbox into 2.3-develop