This commit fixes notification counter and duplicate generation of notifications.
removed withTransaction
This commit fixes transactional problems in Akka contexts.
Minor improvements.

Classes:
- BaseNotifiable: Delete of unused imports
- Post: Delete of unused imports
This commit improves code by excluding transactions from the models.
#17 first feature example
#35 quickfix group edit layout bug
Merge branch 'develop' into 17_LandingPage