Increase maximum vnc server name length

java/com/tigervnc/vncviewer/VncViewer.java

   private static VncViewer applet;
 
   private String defaultServerName;
-  int VNCSERVERNAMELEN = 64;
+  int VNCSERVERNAMELEN = 256;
   CharBuffer vncServerName = CharBuffer.allocate(VNCSERVERNAMELEN);
 
   public static void setLookAndFeel() {

vncviewer/vncviewer.h

 #ifndef __VNCVIEWER_H__
 #define __VNCVIEWER_H__
 
-#define VNCSERVERNAMELEN 64
+#define VNCSERVERNAMELEN 256
 
 void exit_vncviewer(const char *error = NULL);
 bool should_exit();