updating to rc4

Change-Id: I900770ebe8f53c9f34c248e8447add1b2303274f
diff --git a/pom.xml b/pom.xml
index 375b9a9..d74a505 100644
--- a/pom.xml
+++ b/pom.xml
@@ -28,7 +28,7 @@
 
     <groupId>org.opencord</groupId>
     <artifactId>vtn</artifactId>
-    <version>1.0-rc3</version>
+    <version>1.0-rc4</version>
     <packaging>bundle</packaging>
 
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