provide XMI save options for speeding up serialization
use snapshot version
do not copy lists that are already a copy in SaltAnnotateExtractor
always set SName for SOrderingRelations
avoiding automatic setting of SName
use RelannisNodeFeature instead of 8 single features in order to save Salt processing time
add a way to benchmark the salt mapping
do not use listIterator if not needed and removed uncompileable helper class
do not commit benchmark db
Merge branch 'master'

Conflicts:
	annis-interfaces/src/main/java/annis/provider/SaltProjectProvider.java
	annis-libgui/src/main/java/annis/libgui/PDFPageHelper.java
	annis-service/src/test/java/annis/BenchmarkTest.java
going back to salt version 1.1.6 in order to prepare for ANNIS release
further minimizing the use of sfeatures also for edges, also fixing some test cases
Merge pull request #134 from thomaskrause/saltenhancements

use Salt in a faster way