Change de_gpl_info.release_nbr to string (FT-749 + FT-751)
Updated tests reflecting type change of degplinfo.release_nbr to String
getGenomeBuildNumber returns a GenomeBuildNumber enumeration type
Turn Genome build identifier into String type in Platform API
Merge pull request #34 from thehyve/genome_release_number

Change de_gpl_info.release_nbr to string (FT-749 + FT-751)