[sfViewableModelPlugin] updated view cache manager to work with the latest symfony development
[sfViewableModelPlugin] updated view cache manager to work with the latest symfony development

git-svn-id: 52822028d8055902bf79fe8085daecf2ece8579b@17013 ee427ae8-e902-0410-961c-c3ed070cd9f9

Symfony-Plugins/sfViewableModelPlugin