Merge branch 'RELEASE_3_6'

* RELEASE_3_6:
  bump x.y.z versions to even y prior to creation of RELEASE_3_6 branch

DESCRIPTION

 Package: splatter
 Type: Package
 Title: Simple Simulation of Single-cell RNA Sequencing Data
-Version: 1.1.8
+Version: 1.2.0
 Date: 2017-10-13
 Author: Luke Zappia
 Authors@R: