Moved all header location redirects out of actions, replaced with a return string that does the same thing.
Actions now never exit or redirect the header directly
beginTransaction is called before action methods are invoked, and commit is called after the action has completed. issue #29
Neatened the routing annotation reader, and made a common class to retrieve php classes from a directory.
Cleaned up some initialization in the index.php
Bump version
Removed showExceptionMessages setting (you can see these in the logs)
repacked engine.min.js
bumped version