updated libgdx

desktop/build.gradle

@@ -1,3 +1,5 @@
+import org.apache.tools.ant.taskdefs.condition.Os
+
 apply plugin: "java"
 
 sourceCompatibility = 1.6
@@ -12,6 +14,9 @@ task run(dependsOn: classes, type: JavaExec) {
     standardInput = System.in
     workingDir = project.assetsDir
     ignoreExitValue = true
+    
+    if(Os.isFamily(Os.FAMILY_MAC))
+        jvmArgs += "-XstartOnFirstThread"
 }
 
 task debug(dependsOn: classes, type: JavaExec) {