SOC-3930 | Exception when users accept connection request
Merge branch 'feature/stabilization'
Merge branch 'master' into feature/social-notifications

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