ZF-4808: Update AutoCompleteDojo to use Zend_Dojo_Data

Description

Zend_Controller_Action_Helper_AutoCompleteDojo was written prior to Zend_Dojo, and as such re-implements most functionality that is currently in Zend_Dojo_Data, but with less flexibility. Refactor it to use Zend_Dojo_Data.

Comments

Updated in r12301.

Changing issues in preparation for the 1.7.0 release.