ZF-4615: Zend_Dojo should use Google CDN by default, not AOL

Description

The Google CDN has stabilized and resolved XD issues with the 1.2.0 dojo release, and should be made the default CDN option with Zend Framework.

Comments

Fixed in trunk as or r11991 and will be released with 1.7.0.

Changing issues in preparation for the 1.7.0 release.