Update to Android Studio 2.2 (#5)

* Update plugins for Android Studio 2.2

Remove unnecessary buildscript part from some files since the root build.gradle already add those dependencies
Remove hugo from the library
Use latest Gradle - build performance improvement

* Update Android related versions

* Remove empty line

app/build.gradle

@@ -6,25 +6,20 @@ apply plugin: 'com.jakewharton.hugo'
 buildscript {
     repositories {
         jcenter()
-        maven {
-            url "http://dl.bintray.com/kotlin/kotlin-eap-1.1"
-        }
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:2.1.2'
-        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
         classpath 'com.jakewharton.hugo:hugo-plugin:1.2.1'
     }
 }
 
 android {
-    compileSdkVersion 23
-    buildToolsVersion "24.0.1"
+    compileSdkVersion 24
+    buildToolsVersion "24.0.2"
 
     defaultConfig {
         applicationId "co.metalab.asyncawait"
         minSdkVersion 15
-        targetSdkVersion 23
+        targetSdkVersion 24
         versionCode 1
         versionName "1.0"
     }
@@ -42,7 +37,7 @@ android {
 dependencies {
     compile fileTree(dir: 'libs', include: ['*.jar'])
     testCompile 'junit:junit:4.12'
-    compile 'com.android.support:appcompat-v7:23.2.0'
+    compile 'com.android.support:appcompat-v7:24.2.1'
     compile "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version"
     compile project(':asyncawait')
     compile 'com.squareup.retrofit2:retrofit:2.1.0'

asyncawait/build.gradle

@@ -1,28 +1,13 @@
 apply plugin: 'com.android.library'
 apply plugin: 'kotlin-android'
 
-buildscript {
-    repositories {
-        jcenter()
-        maven {
-            url "http://dl.bintray.com/kotlin/kotlin-eap-1.1"
-        }
-    }
-    dependencies {
-        classpath 'com.android.tools.build:gradle:2.1.2'
-        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
-        classpath 'com.jakewharton.hugo:hugo-plugin:1.2.1'
-    }
-}
-
 android {
-    compileSdkVersion 23
-    buildToolsVersion "24.0.1"
+    compileSdkVersion 24
+    buildToolsVersion "24.0.2"
 
     defaultConfig {
         minSdkVersion 15
-        //noinspection OldTargetApi
-        targetSdkVersion 23
+        targetSdkVersion 24
         versionCode 1
         versionName "1"
     }

build.gradle

@@ -9,10 +9,10 @@ buildscript {
         }
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:2.1.2'
+        classpath 'com.android.tools.build:gradle:2.2.0'
         classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
         classpath 'com.jfrog.bintray.gradle:gradle-bintray-plugin:1.6'
-        classpath 'com.github.dcendents:android-maven-gradle-plugin:1.3'
+        classpath 'com.github.dcendents:android-maven-gradle-plugin:1.5'
     }
 }
 

gradle/wrapper/gradle-wrapper.properties

@@ -3,4 +3,4 @@ distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-2.10-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-3.1-bin.zip