Fix JsonC version because master is broken. Duh.
Fix JsonC version because master is broken. Duh.

fezfez/symfony2-eventdispatcher-extension,jolicode/symfony2-eventdispatcher-extension,jolicode/symfony2-eventdispatcher-extension,fezfez/symfony2-eventdispatcher-extension,jolicode/symfony2-eventdispatcher-extension