[1257] bug fix for uploading VRT files
[1257] bug fix for uploading VRT files

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