Release: version 157

Change-Id: Icdc1969c7897b107ccb4b83a1024f46242ef3a5a
diff --git a/ring-android/app/build.gradle b/ring-android/app/build.gradle
index acc01ad..3b7689d 100644
--- a/ring-android/app/build.gradle
+++ b/ring-android/app/build.gradle
@@ -8,8 +8,8 @@
     defaultConfig {
         minSdkVersion 21
         targetSdkVersion 28
-        versionCode 156
-        versionName "20190503"
+        versionCode 157
+        versionName "20190515"
     }
 
     sourceSets {