Revise docblocks in Zend\Session\ContainerAbstractServiceFactory

[pwarnock]

Docblocks indicate usage of SessionConainer\ prefix

33  * Services use the prefix "SessionContainer\\":                                
34  *                                                                              
35  * <code>                                                                       
36  * $container = $services->get('SessionContainer\captcha');                     
37  * </code>                

and that normalizeContainerName strips off the prefix

141      *                                                                          
142      * Strips off the "SessionContainer\" prefix, and lowercases the name.      
143      *    

Docblocks revised to show sample configuration without stripping prefix.

[weierophinney]

Actually... docblocks are legacy in this case; that was the original intent, but during review of the code, we decided to drop the prefixing.

So... I'll only accept this if you revert the code changes and instead remove the information in the docblocks.

[pwarnock]

@weierophinney Thanks for the feedback.