quick and dirty graph decoding
fix in graphdecoder
Merge remote-tracking branch 'origin/master'

Conflicts:
	core/src/main/java/kjerr/core/hmm/GraphDecoder.java
	core/src/main/java/kjerr/core/io/InternedReader.java
	core/src/test/java/kjerr/core/io/InternedReaderTest.java