[Sugar-devel] Can we be a little more friendly to Ubuntu users

[Ma Xiaojun]

I find that the page is even more confusing... Radical changes have
been made by me.

I don't touch the instructions for desktop Ubuntu, though. Because I
need to do testing.

I find that the ubuntu's official repository has multiple version of "sucrose"
http://packages.ubuntu.com/search?keywords=sucrose&searchon=names&suite=all&section=all