Small fix to make plugin compatible with Symfony 1.4.x
Small fix to make plugin compatible with Symfony 1.4.x

git-svn-id: d5d8617348e4c78cebfcfa670c3563437890787d@30475 ee427ae8-e902-0410-961c-c3ed070cd9f9

Symfony-Plugins/sfPropelVersionableBehaviorPlugin