Mbst 9163 incorporate epg widget

[18/07/2014 11:01:22] Steve Rydz: Key changes:
- Added widgets to top navigation
- Combined api explorer and api key cta
- Added example epg widget
- Refactored api explorer header layout
- Removed the 'It's never been so easy to build advanced video and audio services' speech bubble. I'd argue it's not necessary and also gets in the way with an extra nav item.
- Added amended list copy and Chris's styling suggestion