Build with API version 2.11

Change-Id: I27ccd9a65d7cdbcab48b427f2f208430f18543c8

pom.xml

diff --git a/pom.xml b/pom.xml
index 59d14d5..423ae7f 100644
--- a/pom.xml
+++ b/pom.xml
@@ -5,7 +5,7 @@
   <modelVersion>4.0.0</modelVersion>
   <artifactId>external-url-avatar-provider</artifactId>
   <groupId>com.googlesource.gerrit.plugins.avatar_providers</groupId>
-  <version>2.11-SNAPSHOT</version>
+  <version>2.11</version>
   <packaging>jar</packaging>
   <properties>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>