ZF-4765: Zend Soap AutoDiscover broke due to ZF-12195 Abstract Class Change

Description

Changing Zend_Server_Abstract broke the AutoDiscover component.

Comments

This is now temporarily fixed by removing Zend_Server_Abstract from Zend_Soap_Autodiscover (was not used). This could lead to problems in 3rd party code when checking against "instanceof Zend_Server_Abstract"

Changing issues in preparation for the 1.7.0 release.