Update gradle

build.gradle

@@ -5,7 +5,7 @@ buildscript {
     }
 
     dependencies {
-        classpath 'com.android.tools.build:gradle:2.1.2'
+        classpath 'com.android.tools.build:gradle:2.3.0'
         classpath 'com.neenbedankt.gradle.plugins:android-apt:1.8'
         classpath 'com.getkeepsafe.dexcount:dexcount-gradle-plugin:0.5.2'
         classpath 'me.tatarka:gradle-retrolambda:3.2.5'

gradle/wrapper/gradle-wrapper.properties

@@ -1,6 +1,6 @@
-#Thu Jun 09 17:53:47 EDT 2016
+#Fri Mar 17 21:42:38 EDT 2017
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-2.13-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-3.3-all.zip