The use of 2 items block in the depency block meant only one was being
copied instead of both.

FilterReaderRunner had a multitreaded issue where there might be no
progress made after the reader was closed.
Started optimization work but also fixed a multithreading issue.
More optimizations avoid generating non nesecarry triples before
filtering.
Further optimization in not generating triples if we know we do not want
them.
Use sesame2.7.0 remove reference to aduna maven repo
Merge branch 'sesame2.7'

Conflicts:
	sparql-bed/pom.xml
	sparql-bed/src/main/java/ch/isbsib/sparql/bed/BEDFileBindingReader.java
	sparql-bed/src/main/java/ch/isbsib/sparql/bed/BEDFileFilterReader.java
	sparql-bed/src/main/java/ch/isbsib/sparql/bed/FilterReaderRunner.java