Bump to Gerrit 2.12-SNAPSHOT

Change-Id: Iad30821f44fee73f09473e54a990fcc3aa49a309

Author: lucamilanesio

pom.xml

@@ -20,7 +20,7 @@ limitations under the License.
   <artifactId>gitblit-plugin</artifactId>
   <description>GitBlit for Gerrit integrated as a plugin</description>
   <name>Gerrit - GitBlit Plugin</name>
-  <version>2.11-SNAPSHOT</version>
+  <version>2.12-SNAPSHOT</version>
   <licenses>
     <license>
       <name>Apache License 2.0</name>