switched back to old system dependent audio method; updated libgdx

framework; added ashley

desktop/build.gradle

@@ -1,5 +1,3 @@
-import org.apache.tools.ant.taskdefs.condition.Os
-
 apply plugin: "java"
 
 sourceCompatibility = 1.6
@@ -14,9 +12,6 @@ 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) {