Preparing development version 4.1.4-SNAPSHOT

Signed-off-by: Duo Zhang <zhangduo@apache.org>
diff --git a/pom.xml b/pom.xml
index 6588722..a1527bc 100644
--- a/pom.xml
+++ b/pom.xml
@@ -122,7 +122,7 @@
   <developers />
   <!--TODO-->
   <properties>
-    <revision>4.1.3</revision>
+    <revision>4.1.4-SNAPSHOT</revision>
     <maven.javadoc.skip>true</maven.javadoc.skip>
     <maven.build.timestamp.format>
       yyyy-MM-dd'T'HH:mm