Release app version 5.1.1 with API version 5.1.0

Change-Id: Ied06c9e16dac41caf7b58adb5c3e5f882a4eb4dc
diff --git a/pom.xml b/pom.xml
index 8756abe..5d1bbf4 100644
--- a/pom.xml
+++ b/pom.xml
@@ -30,7 +30,7 @@
     </parent>
     <groupId>org.opencord</groupId>
     <artifactId>olt</artifactId>
-    <version>5.1.1-SNAPSHOT</version>
+    <version>5.1.1</version>
     <packaging>pom</packaging>
     <description>OLT Application</description>
     <url>http://onosproject.org</url>