Update to gradle 3.3 and light cleanup.

android/src/io/github/lonamiwebs/klooni/AndroidLauncher.java

@@ -4,7 +4,6 @@ import android.os.Bundle;
 
 import com.badlogic.gdx.backends.android.AndroidApplication;
 import com.badlogic.gdx.backends.android.AndroidApplicationConfiguration;
-import io.github.lonamiwebs.klooni.Klooni;
 
 public class AndroidLauncher extends AndroidApplication {
 	@Override

build.gradle

@@ -7,7 +7,7 @@ buildscript {
     }
     dependencies {
         classpath 'de.richsource.gradle.plugins:gwt-gradle-plugin:0.6'
-        classpath 'com.android.tools.build:gradle:2.2.3'
+        classpath 'com.android.tools.build:gradle:2.3.1'
         classpath 'com.mobidevelop.robovm:robovm-gradle-plugin:2.3.0'
     }
 }

core/src/io/github/lonamiwebs/klooni/Klooni.java

@@ -41,7 +41,7 @@ public class Klooni extends Game {
         skin.add("button_up", new NinePatch(new Texture(
                 Gdx.files.internal("ui/button_up.png")), 28, 28, 28, 28));
 
-        skin.add("button_down", new NinePatch(new Texture(
+        skin.add("button_dscalableown", new NinePatch(new Texture(
                 Gdx.files.internal("ui/button_down.png")), 28, 28, 28, 28));
 
         skin.add("play_texture", new Texture(Gdx.files.internal("ui/play.png")));
@@ -83,11 +83,6 @@ public class Klooni extends Game {
 
     //region Screen
     
-    @Override
-    public void render() {
-        super.render();
-    }
-
     // TransitionScreen will also dispose by default the previous screen
     public void transitionTo(Screen screen) {
         transitionTo(screen, true);

core/src/io/github/lonamiwebs/klooni/game/PieceHolder.java

@@ -223,7 +223,7 @@ public class PieceHolder implements BinSerializable {
                     Gdx.input.getX(),
                     Gdx.graphics.getHeight() - Gdx.input.getY()); // Y axis is inverted
 
-            if (Klooni.onDesktop) {
+            if (Klooni.onDesktop) { //FIXME(oliver): This is a bad assumption to make. There are desktops with touch input and non-desktops with mouse input.
                 // Center the piece to the mouse
                 mouse.sub(piece.getRectangle().width * 0.5f, piece.getRectangle().height * 0.5f);
             } else {

gradle/wrapper/gradle-wrapper.properties

@@ -1,6 +1,6 @@
-#Sat Jan 21 20:46:40 CET 2017
+#Sat Apr 08 12:05:23 CEST 2017
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-2.14.1-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-3.3-all.zip