Bump version after 1.1.2 release

Author: retronym

build.sbt

@@ -4,7 +4,7 @@ import VersionKeys._
 scalaModuleSettings
 
 name    := "scala-partest"
-version := "1.1.2-SNAPSHOT"
+version := "1.1.3-SNAPSHOT"
 
 scalaVersionsByJvm in ThisBuild := {
   val vs = List("2.12.2", "2.13.0-M1")