update readme with new scope that includes Triple and Quad in initial phase
add java-8 and apache license to pom.xml

also cleanup my email address and use junit-4 instead of junit-3 by default if/when we decide to include conformance tests
javadoc Literal
Remove Resource, replace with BlankNodeOrIRI pending further discussion

The current Sesane/Jena use of "Resource" is not compatible with RDF-1.1
terminology, so removing to avoid ambiguity, and replacing with
BlankNodeOrIRI.
Replace getProperty with getPredicate per RDF-1.1 terminology fixes #2
javadoc Quad
javadoc Triple
javadoc RDFTerm
javadoc BlankNodeOrIRI
javadoc BlankNode
javadoc IRI
cleanup javadoc
Use http://www.w3.org/TR/rdf11-concepts/ as reference URI
Further clarify getLanguageTag semantics
refine concept of local scope for blank nodes
manually merged pull request #4
manually merged pull request #4 from branch 'ansell-master'
Merge branch 'master' into model
addressed the comments from @afs
added some javadoc