ZF-10487: AMF3 serialization performance
ZF-10487: AMF3 serialization performance

- Applied patch Amf.perform.ref-writeString-1.10.5.patch
- Also applied spl_object_hash() improvements as suggested in comments

git-svn-id: abaeb2b3ba5a94ed391a9405ad7d63d0414021c9@23682 44c647ce-9c0f-0410-b52a-842ac1e357ba

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