Merge pull request #2318 from ryanw-se/update-build

Update Gradle & Crosswalk dependencies

app/build.gradle

@@ -64,5 +64,5 @@ dependencies {
     compile 'com.android.support:support-v13:22.1.1'
     compile 'com.android.support:appcompat-v7:22.1.1'
     compile 'com.google.android.gms:play-services-analytics:7.3.0'
-    compile 'org.xwalk:xwalk_core_library:13.42.319.11'
+    compile 'org.xwalk:xwalk_core_library:13.42.319.12'
 }

build.gradle

@@ -5,7 +5,7 @@ buildscript {
         jcenter()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:1.1.0'
+        classpath 'com.android.tools.build:gradle:1.2.3'
 
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files