Update timeline for 2014.
Remove commented-out code.
Remove "thanks for attending" well.
Update intro paragraph for 2014.
Small wording improvement.

Make it less wordy.
Update Lanyrd URL
Remove 2013 sponsors.
Update venue information in sidebar.
Update venue/date details in header.
Update timeline with actual dates for 2014.
Merge pull request #211 from alastairs/2014-updates

Update the site for 2014.

Remove all references to 2013, the Hauser Forum, etc., and "reset" the site to the pre-conference state: no sessions, speakers, agenda, etc.
Add a 'fork me' ribbon
Merge pull request #223 from adrianbanks/fork-me-banner

Add a 'fork me' ribbon, in the DDDEA green (almost).
Clear out the existing sponsors
remove sponsor logos
remove some other outdated images
Merge pull request #224 from adrianbanks/remove-existing-sponsors

Clear out the existing sponsors, missed from the previous 2014 update.
fix a duff builder
add the correct conditions to the navigation bar so that the links appear/disappear at the correct dates
add some tests for the new logic