Added event trigger for relation update
Changed permissions settings
repositiory now implements Doctrine\Common\Persistence\ObjectRepository interface
make getMeta public to get information about entities
Merge branch 'master' of https://github.com/apa-opensource/Neo4j-PHP-OGM

Conflicts:
	lib/HireVoice/Neo4j/EntityManager.php
Merge remote-tracking branch 'orig3/public-get-meta'
Merge remote-tracking branch 'orig3/repository-implement-objectrepository'