Agenda 2014

I've put 20-minute breaks in to give people a bit more time to move between the rooms and West Road. I tried putting in the CtM logo for the breakfast sponsorship, but with all the padding it looked a bit rubbish...
If there's time for such a refactoring, it would be nice to have HTML Helpers for Session and Speaker links. Something like:

````HTML
    @Html.SessionLink("OWIN, Kata and ASP.NET vNext: eliminating the pain of IIS", 4124)
    <br />
    @Html.SpeakerLink("David Simner", 11)
````

Ideally, there'd be a more programmatic way of creating the agenda, but this would provide a vaguely sensible interim step of reducing the amount of code we have to write to do the agenda.