Add missing KEYS file from bin release

git-svn-id: https://svn.apache.org/repos/asf/manifoldcf/integration/solr-3.x/trunk@1743202 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/src/main/assembly/bin.xml b/src/main/assembly/bin.xml
index 8988d4b..30de322 100644
--- a/src/main/assembly/bin.xml
+++ b/src/main/assembly/bin.xml
@@ -40,6 +40,7 @@
             <fileMode>644</fileMode>
             <directoryMode>755</directoryMode>
             <includes>
+                <include>KEYS</include>
                 <include>README.txt</include>
                 <include>LICENSE.txt</include>
                 <include>NOTICE.txt</include>