change sponsor from citrix to cloudstack
added thanks to AFS for Austin
Merge pull request #255 from drozer/master

apache cloudstack approved the sponsor
Merge pull request #257 from jbraeuer/master

Berlin 2013: Almost final program. Add silver sponsor Targent.
Merge pull request #258 from jbraeuer/master

Berlin 2013: Final program.
Adam Jacob DevOps+Agile=Business Transformation
Merge pull request #260 from rberger/DevopsAgileBusinessTransformation

Adam Jacob DevOps+Agile=Business Transformation
Berlin CFP ended, call for ignites instead.
Merge pull request #261 from IngmarKrusch/master

Berlin CFP has ended, update index.html accordingly.
Added details on how to livestream and record
Merge pull request #262 from IngmarKrusch/master

Added details on how to livestream and record
DoDu 2013: Adding revised Andrew Shafer proposal
Berlin 2013: +1 ignite.