[Design-team] banner/rollup for LinuxCon

[S.Kemter]

Hi,
> 
> > If you are up for it Sirko, you might try
> > giving the pattern in the background a more pronounced 'wave' but it's
> > not necessary and I don't know if it would work. (Might look a bit more
> > exciting if it worked but hard to know without trying)
> 
> yes will try that, Iike on the begin of the wave there it looks more "wavy"

I updated it, its more wavy now. But u can see it only on the begin, the most 
of the wave is hidden from the 4foundation bubbles in the center

http://gnokii.fedorapeople.org/banner-czech2.png

br gnokii