[#647] key/value metadata is written to metadata xml document
[#647] key/value metadata is written to metadata xml document

RENCI/xDCIShare,RENCI/xDCIShare,hydroshare/hydroshare,hydroshare/hydroshare,RENCI/xDCIShare,RENCI/xDCIShare,FescueFungiShare/hydroshare,FescueFungiShare/hydroshare,FescueFungiShare/hydroshare,ResearchSoftwareInstitute/MyHPOM,FescueFungiShare/hydroshare,ResearchSoftwareInstitute/MyHPOM,hydroshare/hydroshare,hydroshare/hydroshare,hydroshare/hydroshare,RENCI/xDCIShare,ResearchSoftwareInstitute/MyHPOM,FescueFungiShare/hydroshare,ResearchSoftwareInstitute/MyHPOM,ResearchSoftwareInstitute/MyHPOM