updated libgdx

android/build.gradle

@@ -1,6 +1,6 @@
 android {
-    buildToolsVersion "25.0.2"
-    compileSdkVersion 25
+    buildToolsVersion "27.0.3"
+    compileSdkVersion 27
     sourceSets {
         main {
             manifest.srcFile 'AndroidManifest.xml'
@@ -12,7 +12,6 @@ android {
             jniLibs.srcDirs = ['libs']
         }
 
-        instrumentTest.setRoot('tests')
     }
     packagingOptions {
         exclude 'META-INF/robovm/ios/robovm.xml'
@@ -20,7 +19,15 @@ android {
     defaultConfig {
         applicationId "zero1hd.rhythmbullet"
         minSdkVersion 9
-        targetSdkVersion 25
+        targetSdkVersion 27
+        versionCode 1
+        versionName "1.0"
+    }
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
+        }
     }
 }