Add schedule.

Add a table that contains the list of events and the different haps. It is
linked to below the speakers section and in the menu.

The names of the speakers links to their twitter account. The talk titles link to that talk on the conference site.

What is looks like:

![screen shot 2014-05-02 at 14 40 58](https://cloud.githubusercontent.com/assets/928367/3018410/276c78a4-df85-11e3-82c9-c44e1a7c8669.png)