Merge pull request #12 from visionstech/patch-1

Update build.gradle

Author: kadikraman

android/build.gradle

@@ -13,7 +13,8 @@ apply plugin: 'com.android.library'
 
 android {
     compileSdkVersion 23
-
+    buildToolsVersion "23.0.1"
+    
     defaultConfig {
         minSdkVersion 16
         targetSdkVersion 22