Revert streaming of RDF data
This effectively reverts commit f084f2b5. Revert was not used because of conflict due to other changes.
I also organized everything in its own package.
Although the code runs much faster, it still runs in the 5-6 minute range, which may be too slow on the production system. I have ideas how to speed it up further, but have to test them first.
Edited by Manuel Prinz