Small build fix.

git-svn-id: http://svn.igniterealtime.org/svn/repos/wildfire/trunk@4163 b35dd754-fafc-0310-a699-88a17e54d16e

build/build.xml

@@ -787,7 +787,7 @@
             <fileset dir="${target.dir}">
                 <include name="plugins/enterprise.jar"/>
                 <include name="plugins/fastpath.jar"/>
-                <include name="plugins/webchat.jar"/>
+                <include name="plugins/webchat.war"/>
             </fileset>
         </copy>
         <!-- Remove GPL libs from distribution -->