fixed send mail after registration
Merge branch 'develop' into fix-registration-mail
added mail API service to production
new registration mail
new collecting mail
new contribution mail
new implementing mail
fixed error in layout
new success email
Merge branch 'develop' into fix-registration-mail
fixed images
fixed mediaPoster
fixed mail template
refactored dream subscriber
refactored user subscriber
added new style to email
Merge branch 'develop' into fix-registration-mail

Conflicts:
	src/Geekhub/UserBundle/EventListener/RegistrationSubscriber.php
fix after merge
fixed social button
added cs fixer