Prepare release 0.6.5-3 (NFD 0.6.5)

Change-Id: I016241871687399f7cc75e1b9f7b00ae4ae5cad1
diff --git a/app/build.gradle b/app/build.gradle
index 1815257..ff8edc6 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -9,8 +9,8 @@
         applicationId "net.named_data.nfd"
         minSdkVersion 23
         targetSdkVersion 27
-        versionCode 4011
-        versionName "0.6.5-2 (NFD 0.6.5)"
+        versionCode 4012
+        versionName "0.6.5-3 (NFD 0.6.5)"
         multiDexEnabled true
     }
     compileOptions {