Works with more updated version of Jena 2.10.0 and Pellet 2.3.1

* Updated to Jena 2.10.0 and Pellet 2.3.1. There is an incompatibility between latest Jena 2.10.1 and Pellet 2.3.1.
* Many test cases are working but not all. This can be an incremental work.
* Added TDB support. Added SDB support is trivial.
* Please review the sources, especially for handling of literals in jena_adapter.rb