Added AJAX_Bridge class to link with different CMS's permissions
Email class: fix encoding; enable sending and re-sending to new recipient
Debug: yet more tweaks and fixes.
PDO: SQL statement cacheing
Revert "PDO: SQL statement cacheing" - does not seem to help!

This reverts commit b0ddfad3cd07c3432764bf2482f38f39c3a2676b.
PDO_Model: formatting
PSR2 naming on AJAX/Module*
Debug: added profilePop/Push
PDO: added nicer debugging