fix appName and kotlin version

build.gradle

@@ -20,7 +20,7 @@ allprojects {
 
     version = '1.0'
     ext {
-        appName = "DuelSimulation"
+        appName = "ExeBattle"
         gdxVersion = '1.9.7'
         roboVMVersion = '2.3.1'
         box2DLightsVersion = '1.4'

core/build.gradle

@@ -11,7 +11,7 @@ eclipse.project {
     name = appName + "-core"
 }
 buildscript {
-    ext.kotlin_version = '1.1.51'
+    ext.kotlin_version = '1.2.10'
     repositories {
         mavenCentral()
     }