ZF-8117: make properties of Zend_OpenId_Provider protected to enable sub-classing

Description

I tried to subclass Zend_OpenId_Provider to reimplement to checkAuth function.

Unfortunately this is not possible, as all class variables got defined as private and not as protected.

Just changing all private class variables to protected solved the problem.

Comments

It's mostly the same problem like ZF-3003.

Bulk change of all issues last updated before 1st January 2010 as "Won't Fix".

Feel free to re-open and provide a patch if you want to fix this issue.