Have getChromosomeLength behave as expected
Have getChromosomeLength behave as expected

getChromosomeLength(String chrName) was just returning the chromosome for the ReferenceFrame, rather than the chromosome which was named in the input. We make this method static so it's explicitly not the current ReferenceFrame, have an instance method getChromosomeLength()

godotgildor/igv,godotgildor/igv,igvteam/igv,godotgildor/igv,itenente/igv,itenente/igv,godotgildor/igv,igvteam/igv,amwenger/igv,godotgildor/igv,itenente/igv,amwenger/igv,amwenger/igv,igvteam/igv,igvteam/igv,itenente/igv,itenente/igv,igvteam/igv,amwenger/igv,amwenger/igv