* Refactored iBatis based readers and writers to not utilize SqlMapClientTemplate. * Depricated all iBatis based readers and writers in favor of MyBatis's native Spring support. * Updated XStream support to 1.4.4 and Jettison to 1.2 to be in alignment with Spring 4. * Added the PooledEmbeddedDataSource to address the issue outlined in SPR-11372.