Fixed tiny Scrutinizer-CI issue - already merged the fix upstream.
Show warning alerts at frontend
Removed files that are installed by SensioDistributionBundle
Fixed issue #1689
[VariationBundle] Fix unexpected dependency issue
[Core] [WebBundle] Implemented Guest checkout
Fix item based promotion
Fixed code style.
Fixed fatal on checkout.
Improved guest customer info in admin.
Merge remote-tracking branch 'upstream/master' into GH90-Implementing-guest-checkout
Merge remote-tracking branch 'upstream/master' into GH90-Implementing-guest-checkout
Cover order placing with behat tests.
Code style fixes
adjustments on .gitignore
Merge remote-tracking branch 'origin/master' into GH90-Implementing-guest-checkout
User email as username for OAuth login.
Order comment system.

Provides the ability to notify customers about order changes in the administration interface.
Merge pull request #1886 from stloyd/feature/order_comments

Order comments.
[CoreBundle] Add ability to information how many products were sold
[OrderBundle] Remove unused config parameter
Add "email" to Facebook OAuth scope.