SomaticSignatures_0.3.3: VRanges, sorting, references, compilation

git-svn-id: https://hedgehog.fhcrc.org/bioconductor/trunk/madman/Rpacks/SomaticSignatures@86634 bc3139a8-67e5-0310-9ffc-ced21a209358
conflicts resolved while setting up Git-SVN bridge