Merge branch 'master' into feature/stabilization
FORUM-732 : Update version of kernel | core | jcr | ws | gatein to be compliant with plf-4.x
Crowdin injection w50 (20131212)
Crowdin injection w51 (French, Arabic on 20131217)
FORUM-688 | Incorrect labels depending on the language.
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
Merge branch 'feature/stabilization'