Introduction to GNOME in 2.6

[Alexander Kirillov <kirillov math sunysb edu>]

Hi guys:
"Introduction to GNOME" document - in gnome-user-docs package - was not
updated in a while (since summer, I believe). This is my fault - didn't
have time to do it. In its curretn form, it will do more harm than good
if we ship it with GNOME 2.6. 

So I'd suggest removing it altogether from the package, at least for now
- and probalby for good. Do we need release team blessing for this? 

Sasha