FORUM-713 | Broken UI after moving back a forum
FORUM-599: [Answers] No result displayed if search with special chars
FORUM-729 | [Forum] Cannot sort topic by rating

Fix description:
Problem:
* Don't add orderBy String on UITopicContainer.
* When add new post on specified topic, TopicListCaching isn't clearly.

Conflicts:

	forum/service/src/main/java/org/exoplatform/forum/service/cache/CachedDataStorage.java