Fix issue #1: multiple VNC servers at same address.

"Valence does not allow multiple VNC servers to be configured on the same host"

src/com/cafbit/valence/device/ValenceDevice.java

@@ -101,4 +101,28 @@ public String toString() {
         return "valence://"+address+"/";
     }
 
+    // the superclass hashes address; we hash port
+    @Override
+    public int hashCode() {
+        final int prime = 31;
+        int result = super.hashCode();
+        result = prime * result + port;
+        return result;
+    }
+
+    // the superclass compares address; we compare port
+    @Override
+    public boolean equals(Object obj) {
+        if (this == obj)
+            return true;
+        if (!super.equals(obj))
+            return false;
+        if (getClass() != obj.getClass())
+            return false;
+        ValenceDevice other = (ValenceDevice) obj;
+        if (port != other.port)
+            return false;
+        return true;
+    }
+
 }

src/com/cafbit/valence/device/ValenceDeviceSetupView.java

@@ -212,7 +212,7 @@ private void createPhase2() {
                 TextView macAuthLabel = new TextView(context);
                 macAuthLabel.setText(
                     "Mac OS X authentication is required if you are " +
-                    "connecting to a machine running Mac OS X 10.7 Lion."
+                    "connecting to a machine running Mac OS X 10.7 Lion.  (Or later updates to 10.6 Snow Leopard!)"
                 );
                 layout.addView(macAuthLabel);