Use latest Gradle Android plugin and build tools

build.gradle

@@ -4,11 +4,11 @@ buildscript {
   }
 
   dependencies {
-    classpath 'com.android.tools.build:gradle:0.11.+'
+    classpath 'com.android.tools.build:gradle:0.12.2'
   }
 }
 
-apply plugin: 'android'
+apply plugin: 'com.android.application'
 
 dependencies {
   compile project(':plugins:Android-PullToRefresh:library')
@@ -21,7 +21,7 @@ dependencies {
 
 android {
   compileSdkVersion 19
-  buildToolsVersion '19.1.0'
+  buildToolsVersion '20.0.0'
 
   sourceSets {
     main {

plugins/Android-PullToRefresh/library/build.gradle

@@ -1,8 +1,8 @@
-apply plugin: 'android-library'
+apply plugin: 'com.android.library'
 
 android {
   compileSdkVersion 19
-  buildToolsVersion '19.1.0'
+  buildToolsVersion '20.0.0'
 
   sourceSets {
     main {

plugins/HoloColorPicker/build.gradle

@@ -1,4 +1,4 @@
-apply plugin: 'android-library'
+apply plugin: 'com.android.library'
 
 android {
   compileSdkVersion 19

plugins/ckChangeLog/library/build.gradle

@@ -1,8 +1,8 @@
-apply plugin: 'android-library'
+apply plugin: 'com.android.library'
 
 android {
   compileSdkVersion 19
-  buildToolsVersion '19.1.0'
+  buildToolsVersion '20.0.0'
 
   sourceSets {
     main {

plugins/openpgp-api-library/build.gradle

@@ -5,16 +5,16 @@ buildscript {
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:0.11.+'
+        classpath 'com.android.tools.build:gradle:0.12.2'
     }
 }
 
-apply plugin: 'android-library'
+apply plugin: 'com.android.library'
 
 android {
-    compileSdkVersion 17
-    buildToolsVersion '19.1.0'
-    
+    compileSdkVersion 19
+    buildToolsVersion '20.0.0'
+
     // NOTE: We are using the old folder structure to also support Eclipse
     sourceSets {
         main {