update count.sigDMR.list() function to take GRanges myDMR object; add get.hyper.dmr() and get.hypo.dmr() functions
update count.sigDMR.list() function to take GRanges myDMR object; add get.hyper.dmr() and get.hypo.dmr() functions

Shicheng-Guo/edmr,avilella/edmr