[EuroPython] Removing the 20,000

[Martijn Faassen]

Hi there,

Since we've got so clue where the 20,000 figure of Zope developers came
from, I've removed it from all press releases.

Though it wasn't in the french one. And I can't really read 
Esperanto, but I deleted the 20,000 one anyway. If it was something
about 20,000 leagues under the sea in that text, I apologize. :)

Let's not throw around numbers when we can't back them up 
extremely well.

Regards,

Martijn