Remove base pair rounding in location string

Makes no sense to do rounding on an exact location (?)

e.g. see genome location column here http://www.ensembl.org/Homo_sapiens/Transcript/Domains/Genes?db=core;domain=IPR001766;g=ENSG00000128573;r=6:165317945-168116556;t=ENST00000403559