[WIP] UX Refresh

Looking for initial feedback.

The primary goals are to:

1. Increase visibility & primary action for users expressing interest.
2. Create a visual vocabulary so sessions a user has expressed interest in will carry over to the `/schedule`. The idea is the MinneBar mark will highlight sessions. I'm playing with ideas how to reflect it on schedule screen...

Just trying to do this while it's on the brain. I'm sure ya'll are just breathing easy right now. :) Good show yesterday!

![Screenshot](http://cl.ly/image/3J2Y11012x2H/Screen%20Shot%202013-04-07%20at%2010.34.43%20PM.png)