Merge branch 'master' into devel

* master:
  Version 0.99.11
  Run checks
  Fix mean-zeros scale
  Make lun2Estimate parallel
  Allow non-interger Lun 2 lib sizes
  Fix dropout eta

From: Luke Zappia <lazappi@users.noreply.github.com>

git-svn-id: file:///home/git/hedgehog.fhcrc.org/bioconductor/trunk/madman/Rpacks/splatter@127511 bc3139a8-67e5-0310-9ffc-ced21a209358