Infrastructure: Bump NetLogo API to 6.1 and version

Author: LaCuneta

build.sbt

@@ -4,7 +4,7 @@ scalaVersion := "2.12.8"
 
 name := "bitmap"
 
-version := "1.1.0"
+version := "1.1.1"
 
 netLogoClassManager := "org.nlogo.extensions.bitmap.BitmapExtension"
 
@@ -16,4 +16,4 @@ javaSource in Compile := baseDirectory.value / "src"
 javacOptions ++= Seq("-g", "-deprecation", "-Xlint:all", "-Xlint:-serial", "-Xlint:-path",
   "-encoding", "us-ascii")
 
-netLogoVersion := "6.0.4-9328ba6"
+netLogoVersion := "6.1.0-RC1"