extractSeqs to an indexed reference genome using
gfServer/gfClient protocol or using standalone BLAT and return the psl file
as a GRanges object. This function heavily relies on defaults of
blatSeqs.blatListedSet(dnaSetList = NULL, ...)blatSeqs.pairwiseAlignSeqs, vpairwiseAlignSeqs,
startgfServer, stopgfServer,
blatSeqs, read.psl,
pslToRangedObject, read.blast8