bump versions prior to creating BioC 2.13 branch

git-svn-id: https://hedgehog.fhcrc.org/bioconductor/trunk/madman/Rpacks/ggbio@81642 bc3139a8-67e5-0310-9ffc-ced21a209358
bump version after release branch has been created

git-svn-id: https://hedgehog.fhcrc.org/bioconductor/trunk/madman/Rpacks/ggbio@81644 bc3139a8-67e5-0310-9ffc-ced21a209358