PT318571 Changes required for adding mongodb providers to Openfire
Some refactoring needed for DB access
Upgraded monogdb java driver (2.9.0 contained a bug that triggered during my tests)
Set java sources encoding to UTF-8 (one test that used german characters was failing when trying to build RPMs for CentOS)
Cleaned up projects' classpaths (removed references to SIPX_SRC_TOP and SIPX_JAVA_TOP)