[sfDoctrineGuardPlugin][1.0][1.1][1.2][trunk] fixed hasCredential() method to admit an anonymous user to have an empty credential list
[sfDoctrineGuardPlugin][1.0][1.1][1.2][trunk] fixed hasCredential() method to admit an anonymous user to have an empty credential list

git-svn-id: e6180648f1438032975755a03660179a2fce9ff1@15776 ee427ae8-e902-0410-961c-c3ed070cd9f9

Symfony-Plugins/sfDoctrineGuardPlugin