add command name and ensembl db version to design parameters hash/file
add a json string containing the design parameters to the design data file, to be persisted to LIMS2
remove TODO
throw a exception when the design is not persisted, do not just log a error, otherwise the DESIGN DONE log message comes up and that could be misleading
when filtering gibson oligos you can now set the exon-check-flank-length value to 0, this will bypass the exon check altogether