Refine how isDisjoint() handles empty ranges.

git-svn-id: https://hedgehog.fhcrc.org/bioconductor/trunk/madman/Rpacks/IRanges@77185 bc3139a8-67e5-0310-9ffc-ced21a209358
Trying to improve formatting a little bit.

git-svn-id: https://hedgehog.fhcrc.org/bioconductor/trunk/madman/Rpacks/IRanges@77186 bc3139a8-67e5-0310-9ffc-ced21a209358
Add make_XYZxyz_to_XxYyZz_subscript() internal utility.

git-svn-id: https://hedgehog.fhcrc.org/bioconductor/trunk/madman/Rpacks/IRanges@77408 bc3139a8-67e5-0310-9ffc-ced21a209358
Merge branch 'local-hedgehog'