New property for setting the image to use as powered by + location.

PR: MAVEN-364


git-svn-id: https://svn.apache.org/repos/asf/maven/maven-1/plugins/trunk@113246 13f79535-47bb-0310-9956-ffa450edef68

xdoc/plugin.properties

@@ -21,6 +21,10 @@ maven.xdoc.date.format = dd MMMM yyyy
 # The date locale
 maven.xdoc.date.locale = en
 
+# The logo to show on the generated site. No default at present (competition isn't closed)
+maven.xdoc.poweredby.image=
+
+
 #
 # UI Color Prefs
 #