Added isSecureConnection method (SMACK-84)

git-svn-id: http://svn.igniterealtime.org/svn/repos/smack/trunk@2089 b35dd754-fafc-0310-a699-88a17e54d16e

source/org/jivesoftware/smack/XMPPConnection.java

@@ -483,6 +483,15 @@ public class XMPPConnection {
         return connected;
     }
 
+    /**
+     * Returns true if the connection is a secured one, such as an SSL connection.
+     *
+     * @return true if a secure connection to the server.
+     */
+    public boolean isSecureConnection() {
+        return false;
+    }
+
     /**
      * Returns true if currently authenticated by successfully calling the login method.
      *