go to symfony 2.2
Fix symfony requirement
Merge branch 'master' into feature/symf22

* master:
  fix php 5.3
  Add og:url, linkedin url & productID to social
  Add meta_title + add get_title_for twig extension
  don't require extrametadata
  Use 2 FormTypes for 1 Entity
Merge pull request #9 from Kunstmaan/feature/symf22

Feature/symf22