Revert "Bumped Symfony2 requirement to 2.2 for master."
Revert "Bumped Symfony2 requirement to 2.2 for master."

This reverts commit d619e3cd0887b508b46d2154facaf9fa176d0fdb.

pepeh/WhiteOctoberPagerfantaBundle,jrobeson/WhiteOctoberPagerfantaBundle,jrobeson/WhiteOctoberPagerfantaBundle,pepeh/WhiteOctoberPagerfantaBundle