Update history plus minor edits

I updated the history with 2011 and 2012 numbers. I used the same numbers that was present for 2011 and then used last year's response sheet for 2012 numbers. I guessed at the 2012 # of followers.

I also updated the page with "+Secret Santa" throughout for consistency.
more consistency
and again...
Merge pull request #1 from agaston/branch01

Branch01