SOC-3693 | UIActivityContainer: Slowness in checking activities

Conflicts:
	component/core/src/main/java/org/exoplatform/social/core/storage/impl/ActivityStreamStorageImpl.java
	component/core/src/test/java/org/exoplatform/social/core/storage/ActivityStorageTest.java
	component/core/src/test/java/org/exoplatform/social/core/storage/impl/ActivityStorageImplTestCase.java
SOC-3665 | UISpaceNavigationPortlet: Slowness in getLastAccessedSpace

Conflicts:
	component/core/src/main/java/org/exoplatform/social/core/storage/impl/SpaceStorageImpl.java
SOC-3693 | UIActivityContainer: Slowness in checking activities - fixed Stream order