ZF-2350: Convert DOM and XPath objects for serialization

Description

DOM and XPath objects can't be serialized. Implement __sleep and __wakeup functions to allow serialization of a result or resultset object.

Comments

Updated target Fix Version and Fix Version Priority.

in r7795

Changed milestone to Minor Release. Zend_Service_Technorati will only be available starting from ZF 1.5.0. See ZF-2334 for more details.