Update version number 3.3->4.0.

README

@@ -1,10 +1,10 @@
 #################################
- __  __            _____  _____  
- \ \/ /___ _ __   |___ / |___ /  
-  \  // _ \ '_ \    |_ \   |_ \  
-  /  \  __/ | | |  ___) | ___) | 
- /_/\_\___|_| |_| |____(_)____/  
-                                 
+ __  __            _  _    ___  
+ \ \/ /___ _ __   | || |  / _ \ 
+  \  // _ \ '_ \  | || |_| | | |
+  /  \  __/ | | | |__   _| |_| |
+ /_/\_\___|_| |_|    |_|(_)___/ 
+                                
 #################################
 
 http://www.xen.org/
@@ -21,7 +21,7 @@ development community, spearheaded by XenSource Inc, a company created
 by the original Xen development team to build enterprise products
 around Xen.
 
-The 3.3 release offers excellent performance, hardware support and
+The 4.0 release offers excellent performance, hardware support and
 enterprise-grade features such as x86_32-PAE, x86_64, SMP guests and
 live relocation of VMs. Ports to Linux 2.6, Linux 2.4, NetBSD, FreeBSD
 and Solaris are available from the community.
@@ -54,8 +54,8 @@ performed with root privileges.]
    /boot/grub/menu.lst: edit this file to include an entry like the
    following:
 
-    title Xen 3.3 / XenLinux 2.6
-       kernel /boot/xen-3.3.gz console=vga
+    title Xen 4.0 / XenLinux 2.6
+       kernel /boot/xen-4.0.gz console=vga
        module /boot/vmlinuz-2.6-xen root=<root-dev> ro console=tty0
        module /boot/initrd-2.6-xen.img
 
@@ -74,7 +74,7 @@ performed with root privileges.]
    32MB memory for internal use, which is not available for allocation
    to virtual machines.
 
-3. Reboot your system and select the "Xen 3.3 / XenLinux 2.6" menu
+3. Reboot your system and select the "Xen 4.0 / XenLinux 2.6" menu
    option. After booting Xen, Linux will start and your initialisation
    scripts should execute in the usual way.