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).
Merge pull request #224 from adrianbanks/remove-existing-sponsors

Clear out the existing sponsors, missed from the previous 2014 update.
Added route for Home/Venue
Updated venue page for 2014
Updated with feedback from @alastairs/@adrianbanks; removed Sidgwick details, added pin
Updated sidebar with West Road address, 2014 dates
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
make the condition for the speakers link match that of the sessions link
Larger-scale map
Fix failing tests
Merge pull request #225 from philpursglove/update-venue-for-2014

Updated venue page for 2014.

Conflicts:
	DDDEastAnglia/Views/Shared/_Layout.cshtml
Extract some commonality into a variable
Merge pull request #226 from adrianbanks/hide-menu-links

Hide menu links properly.

The menu links are not hiding based on the dates stored in the database (a bug in the change from EF to Simple.Data). This fixes it, and also hides the speakers link once the agenda is published and the accommodation link until registration is open.
hide the voting stats link when voting hasn't yet opened
add some tests for hiding the voting stats link
only hyperlink the session submission text if session submission is open