ZF-6205 Serializer doesn't support cyclic reference. Test cases and patch to handle cyclic references in the As0 serializer. 
ZF-6205 Serializer doesn't support cyclic reference. Test cases and patch to handle cyclic references in the As0 serializer. 

git-svn-id: abaeb2b3ba5a94ed391a9405ad7d63d0414021c9@16093 44c647ce-9c0f-0410-b52a-842ac1e357ba

sandsmedia/zf,sandsmedia/zf,sandsmedia/zf,grzana12/ZendFramework,grzana12/ZendFramework,grzana12/ZendFramework,grzana12/ZendFramework