Merge pull request #1 from agbeltran/master

Current versions
Merge pull request #2 from agbeltran/master

Updated isa-owl version
Merge pull request #3 from agbeltran/master

Groups and contacts - fixes
adding galaxy workflow uri and link to nanopub, fixing protocol type and parameter label
adding galaxy workflow uri and link to nanopub, fixing protocol type and parameter label, minor fix
changes to uri in assay file
fixes to annotations, adding link to nanopub file
Adding inverted commas
New version of the RDF conversion