Bootstrapping Zend_Translate with a LangSelector Plugin

As an update to the method of hav­ing every­thing related to Zend_Translate and Zend_Locale in the Boot­strap, here is an alter­na­tive using an Con­troller Plu­gin that does the grunt work of val­i­dat­ing, select­ing and updat­ing the Zend_Locale, Zend_Registry & Zend_Session using Zend_Session_Namespace. And we are using poedit .po & .mo files as the source as usual.