DO NOT MERGE Bump up AOSP Contacts version to 1.7.8.

bug:33000560
Change-Id: I4595636e8a4a74250468e9756af37cf778648f3a
diff --git a/AndroidManifest.xml b/AndroidManifest.xml
index cd0b853..779230f 100644
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -16,8 +16,8 @@
 
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
           package="com.android.contacts"
-          android:versionCode="10707"
-          android:versionName="1.7.7">
+          android:versionCode="10708"
+          android:versionName="1.7.8">
 
     <uses-sdk
         android:minSdkVersion="21"