Bump to SR4

Change-Id: I816b23cfe84b5f110693d0c2d09cef6fac87acb5
Signed-off-by: Jan Srnicek <jsrnicek@cisco.com>

pom.xml

diff --git a/pom.xml b/pom.xml
index f0c1710..2687658 100644
--- a/pom.xml
+++ b/pom.xml
@@ -6,7 +6,7 @@
 
     <groupId>io.fd.gerrit</groupId>
     <artifactId>maintainer-plugin</artifactId>
-    <version>2.13-SR4-SNAPSHOT</version>
+    <version>2.13-SR4</version>
     <packaging>jar</packaging>
 
     <properties>