Merge master into feature/stabilization
SOC-3599 Test failure at ActivityStorageImplTestCase.testActivityOrderByPostedTime
SOC-3953 | Exception when users post comments
Merge feature/stabilization into master
Merge branch 'master' into feature/social-notifications

Conflicts:
	component/core/src/main/java/org/exoplatform/social/core/storage/impl/ActivityStorageImpl.java