Menu Item, ssh

[周建锋 <zhoujf@xxxxxxxxxxxxxxxxxxxx>]

Hi, 


   Now, to find astronomical applications, we need to follow the path  "Applications" -> "Science" -> "Astronomy" ->"****".
It's better to use a shorter one, i.e. putting "Astronomy" into main menu directly.


   Aslo, "ssh" is a basic tool in Linux. It should be included by default in our virtual machine.


cheers,
Jianfeng