target Gerrit version 2.13

This plugin only requires Gerrit 2.13 so build against that API.

Change-Id: I81fa4fa028cb5a5b0703ebc1a34e84ef2b084a20
diff --git a/lib/gerrit/BUCK b/lib/gerrit/BUCK
index f15fd7b..563d710 100644
--- a/lib/gerrit/BUCK
+++ b/lib/gerrit/BUCK
@@ -1,6 +1,6 @@
 include_defs('//bucklets/maven_jar.bucklet')
 
-VER = '2.14-SNAPSHOT'
+VER = '2.13-SNAPSHOT'
 REPO = MAVEN_LOCAL
 
 maven_jar(
diff --git a/pom.xml b/pom.xml
index 1199a53..9aa8c14 100644
--- a/pom.xml
+++ b/pom.xml
@@ -21,7 +21,7 @@
   <groupId>com.googlesource.gerrit.plugins</groupId>
   <artifactId>verify-status</artifactId>
   <packaging>jar</packaging>
-  <version>2.14-SNAPSHOT</version>
+  <version>2.13-SNAPSHOT</version>
   <name>Gerrit Verify Status Plugin</name>
 
   <properties>