Update plugin API version to 2.11

Change-Id: Iae9ee1d0907bf68577081d34ff3edbcfc9668f34
Signed-off-by: Edwin Kempin <edwin.kempin@sap.com>

pom.xml

diff --git a/pom.xml b/pom.xml
index f0b3a01..9005b6b 100644
--- a/pom.xml
+++ b/pom.xml
@@ -21,7 +21,7 @@
   <groupId>com.googlesource.gerrit.plugins.imagare</groupId>
   <artifactId>imagare</artifactId>
   <packaging>jar</packaging>
-  <version>2.11-SNAPSHOT</version>
+  <version>2.11</version>
   <name>imagare</name>
 
   <properties>