Gradleのバージョンなどを最新化

build.gradle

@@ -1,20 +1,14 @@
 buildscript {
   repositories {
-    maven {
-      url "https://plugins.gradle.org/m2/"
-    }
-    maven {
-      url 'http://dl.bintray.com/jetbrains/intellij-plugin-service'
-    }
-
+    mavenCentral()
   }
   dependencies {
-    classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:1.1.1"
+    classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:1.1.3-2"
   }
 }
 
 plugins {
-  id "org.jetbrains.intellij" version "0.2.5"
+  id "org.jetbrains.intellij" version "0.2.16"
 }
 
 apply plugin: 'java'
@@ -39,10 +33,10 @@ repositories {
 }
 
 dependencies {
-  compile "org.jetbrains.kotlin:kotlin-stdlib:1.1.1"
+  compile "org.jetbrains.kotlin:kotlin-stdlib:1.1.3-2"
   testCompile 'junit:junit:4.12'
 }
 
 task wrapper(type: Wrapper) {
-  gradleVersion = '3.4'
+  gradleVersion = '4.1'
 }

gradle/wrapper/gradle-wrapper.properties

@@ -1,6 +1,6 @@
-#Sat Mar 25 10:41:53 JST 2017
+#Fri Aug 11 21:33:36 JST 2017
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-3.4-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.1-bin.zip