(room) add in gradle config

app/build.gradle

@@ -54,4 +54,7 @@ dependencies {
         exclude module: 'support-v4'
     }
     testCompile 'junit:junit:4.12'
+    compile "android.arch.persistence.room:runtime:1.0.0-alpha3"
+    annotationProcessor "android.arch.persistence.room:compiler:1.0.0-alpha3"
+
 }

build.gradle

@@ -16,6 +16,7 @@ allprojects {
     repositories {
         jcenter()
         maven { url "https://jitpack.io" }
+        maven { url 'https://maven.google.com' }
     }
 }