Merge pull request #2 from lightster/master

Added Module.php to composer.json's autoload classmap.
Merge pull request #4 from lightster/move-exceptions-from-controller-package

Moved exceptions out of Controller package and into new Exception package.
Merge pull request #3 from lightster/rename-iterate-constants

Renamed IterationEvent EVENT_ITERATE* constants to EVENT_ITERATION*.
Merge remote branch 'lightdatasys/master'