Show warning alerts at frontend
Multiple object managers support
minor touches
remove unused use statement
Fix pricing configuration prototype naming
Random CS fixes
remove space
[Contentbundle] dependencies fixes
Merge pull request #2013 from aRn0D/content/composer

[Contentbundle] dependencies fixes
Merge pull request #1920 from Strontium-90/multiple_object_managers

[ResourceBundle] Multiple object managers support
[SettingsBundle] Removed unused dependency from composer.json
Order user can be null, fixes #2017
[CoreBundle] Add missing email validation for guest checkout
Failng scenarios for guest checkout
Merge pull request #2003 from Joypricecorp/fix-pricing-configuration-prototype-naming

[BugFix] On pricing configuration prototype naming
[CoreBundle] Remove hardcoded classes in order item form
Merge pull request #2017 from umpirsky/fix/issue-2017

Order user can be null
Fix attribute form choice type error.
Merge pull request #2028 from stloyd/bugfix/hardcoded_classes

[CoreBundle] Remove hardcoded classes in order item form
Merge pull request #2019 from hason/patch-1

[SettingsBundle] Removed unused dependency from composer.json