* Move almost all uses of StringBuffer to StringBuilder,

for efficiency (thanks Arsene for the suggestion)

apps/routerconsole/java/src/net/i2p/router/web/SummaryHelper.java

@@ -344,7 +344,7 @@ public class SummaryHelper extends HelperBase {
         List clients = new ArrayList(_context.clientManager().listClients());
         Collections.sort(clients, new AlphaComparator());
         
-        StringBuffer buf = new StringBuffer(512);
+        StringBuilder buf = new StringBuilder(512);
         buf.append("<u><b>Local destinations</b></u><br />");
         
         for (Iterator iter = clients.iterator(); iter.hasNext(); ) {