ZF-4733: Allow namespaces in Zend_Json_Server

Description

Zend_Json_Server has arguments in setClass() and addFunction() to allow specifying a method namespace. However, currently, these are ignored. It should use them, in order to better mimic the other servers and provide more flexibility in naming in the API.

Comments

Added in trunk

Changing issues in preparation for the 1.7.0 release.