[X2Go-User] I can't find x2godesktopsharing

[Jim Lynch]

I am running Mint 17 (Ubuntu 14.04 derivative) and installed
  sudo add-apt-repository ppa:x2go/stable

and per instructions:

sudo aptitude install x2godeskstopsharing

Couldn't find any package whose name or description matched 
"x2godeskstopsharing"

So I downloaded 
http://code.x2go.org/releases/source/x2goserver/x2goserver-4.0.1.19.tar.gz

and I don't find a trace of x2godeskstopsharing in the source code.

What am I missing?

Thanks,
Jim.