Show warning alerts at frontend
minor touches
remove unused use statement
Random CS fixes
[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
[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
Merge pull request #2016 from umpirsky/fix/issue-2016

Guest checkout is missing email validation
Merge pull request #2021 from stloyd/patch-2

[CoreBundle] Add missing email validation for guest checkout
Fix order item compare
The specs of the form has been added
Merge pull request #2015 from aRn0D/content/specs

[ContentBundle] Missing specs
Merge pull request #2010 from aRn0D/content/cs_fix

Random CS fixes
fix issue #2031 display the error message and not the trace