Switching back to snapshot 1.4.0-SNAPSHOT

Change-Id: Ic0ff8fe27d46b0662f596db9185591736efa6cf9
diff --git a/apps/vtn/pom.xml b/apps/vtn/pom.xml
index 7b34cd7..e452851 100644
--- a/apps/vtn/pom.xml
+++ b/apps/vtn/pom.xml
@@ -22,7 +22,7 @@
     <parent>
         <groupId>org.onosproject</groupId>
         <artifactId>onos-apps</artifactId>
-        <version>1.4.0-rc2</version>
+        <version>1.4.0-SNAPSHOT</version>
         <relativePath>../pom.xml</relativePath>
     </parent>