Merge pull request #533 from fabpot/exception-controller-sync

Exception controller sync with TwigBundle
Merge pull request #532 from fabpot/doc-setup

simplified installation documentation
Fix for issue #534 - Doctrine AnnotationException on @note
Merge pull request #535 from DanielleSuurlant/master

Fix for issue #534 - Doctrine AnnotationException on note
fixed undefined variable