updated the map on the main page to point to brisbane 2014
Merge pull request #831 from drozer/master

new ignite by Alessandro Vozza - OpenStack
added brisbane keynote speaker announcement
Merge pull request #832 from angusscown/master

Adding keynote speaker and fixing map - Brisbane 2014
Removing silver buy button. Removing IBM logo based on date
new silver sponsor Amazon Web Services