Added exception mapper for IllegalStateException
Initial work on an asynchronous rest implementation using JPPF to process the asynchronous tasks to allow for lunning running and resource intensive tasks.
Working on async processes for translations. Cleaned up the REST factories and also cleaned up how RESTElement resources are created. Updated liquibase to version 3.1.1 and also changed to using CDI.
Added languagefile content hash
Updated the jppf settings to use the local executor for devel purposes.