Update the presentation a bit.
Update the presentation a bit.

zalt50/iruby,SciRuby/iruby,domitry/iruby,domitry/iruby,SciRuby/iruby,minrk/iruby,Sharpie/iruby,jjn2009/iruby,hainesr/iruby,hainesr/iruby,minrk/iruby,jjn2009/iruby,SciRuby/iruby,zalt50/iruby,Rambatino/pi-ruby,mijoharas/iruby,zalt50/iruby,mijoharas/iruby,astroboxio/iruby,Sharpie/iruby,zalt50/iruby,minrk/iruby,astroboxio/iruby,SciRuby/iruby,Rambatino/pi-ruby