Updated gradle scripts so that it uses newer gradle version

app/build.gradle

@@ -2,13 +2,13 @@ apply plugin: 'com.android.application'
 
 android {
     compileSdkVersion 25
-    buildToolsVersion "25.0.2"
+    buildToolsVersion "26.0.2"
     defaultConfig {
         applicationId "org.love2d.android"
         versionCode 22
         versionName "0.10.2"
         minSdkVersion 10
-        targetSdkVersion 18
+        targetSdkVersion 25
     }
     buildTypes {
         release {

build.gradle

@@ -5,7 +5,7 @@ buildscript {
         jcenter()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:2.2.3'
+        classpath 'com.android.tools.build:gradle:3.0.1'
 
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files

gradle/wrapper/gradle-wrapper.properties

@@ -1,6 +1,6 @@
-#Mon Dec 28 10:00:20 PST 2015
+#Tue Dec 26 11:41:12 CET 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-4.1-all.zip

gradlew

@@ -7,15 +7,15 @@ android {
     // and http://stackoverflow.com/questions/27277433/why-does-gradle-build-my-module-in-release-mode-when-the-app-is-in-debug
     // defaultPublishConfig "debug"
     compileSdkVersion 25
-    buildToolsVersion "25.0.2"
+    buildToolsVersion "26.0.2"
 
     defaultConfig {
         compileSdkVersion 25
-        buildToolsVersion "25.0.2"
+        buildToolsVersion "26.0.2"
         minSdkVersion 10
         externalNativeBuild {
             ndkBuild {
-                arguments "-j2"
+                arguments "-j4"
             }
         }
         ndk {
@@ -49,5 +49,5 @@ android {
 
 dependencies {
     compile fileTree(dir: 'libs', include: ['*.jar'])
-    compile 'com.android.support:appcompat-v7:25.0.0'
+    compile 'com.android.support:appcompat-v7:25.1.0'
 }