Add note about Stream and ConcurrentModificationException, fixes #13
Add RDFTerm.ntriplesString, IRI.getIRIString, and BlankNode.internalIdentifier

Fixes #14
Merge pull request #19 from ansell/stream-cme

Add note about Stream and ConcurrentModificationException, fixes #13
Merge branch 'rdfterm-string' of github.com:ansell/commons-rdf into ansell-rdfterm-string
minor word smithing by @afs
Add TravisCI to ensure that code compiles