Bump version number

DESCRIPTION

 Package: splatter
 Type: Package
 Title: Simple Simulation of Single-cell RNA Sequencing Data
-Version: 1.1.1
-Date: 2017-07-07
+Version: 1.1.2
+Date: 2017-07-16
 Author: Luke Zappia
 Authors@R:
     c(person("Luke", "Zappia", role = c("aut", "cre"),

NEWS.md

+# 1.1.2
+
+* Update summariseDiff
+* Update scDDEstimate, now estimates gene types
+* Fix error in lun2Estimate
+* Import SummarizedExperiment to avoid warnings
+
 # 1.1.1
 
 * Add batch effects to Splat simulation