Update plugin and build tools

.travis.yml

@@ -8,7 +8,7 @@ android:
   components:
     - android-22
     - platform-tools-23.0.1
-    - build-tools-23.0.1
+    - build-tools-23.0.2
     - extra-android-m2repository
     - extra-google-m2repository
   licenses:

build.gradle

@@ -11,7 +11,7 @@ buildscript {
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.4.0-beta5'
+        classpath 'com.android.tools.build:gradle:1.5.0'
     }
 }
 
@@ -25,7 +25,7 @@ android {
     }
 
     compileSdkVersion 22
-    buildToolsVersion "23.0.1"
+    buildToolsVersion "23.0.2"
 
     defaultConfig {
         versionCode 379