rrd4j patch (ticket #2684)

So that DejaVu fonts are not required in the classpath.
We set the default font to Monospaced.
All fonts are then set in SummaryRenderer.

router/java/src/net/i2p/router/RouterVersion.java

@@ -18,7 +18,7 @@ public class RouterVersion {
     /** deprecated */
     public final static String ID = "Monotone";
     public final static String VERSION = CoreVersion.VERSION;
-    public final static long BUILD = 0;
+    public final static long BUILD = 1;
 
     /** for example "-test" */
     public final static String EXTRA = "";