Removed event tracking from billboard slides. Started slide numbers for National Leadership at 1 instead of 0.
Merge pull request #8 in PA/medicine from hotfix/ga_event_tracking to master

* commit 'a24e731f940fbdc98da1b75692e08cfb7c1d5baa':
  Removed event tracking from billboard slides. Started slide numbers for National Leadership at 1 instead of 0.