Enable Pending Tasks on beta dash // Course Info prettifying 

The "Pending Tasks" section wasn't fully ported to the Course Info page, this PR fixes that.

Additionally, the code was refactored to put the table itself into the utils.coffee script, making it easier to put the pending tasks section onto the Student Admin, Data DL, and Email tabs, in addition to course info. These tabs were chosen because they are tabs where an instructor task can be spawned.

Finally, I did a little retooling of the Course Info page, to highlight the enrollment number first, then put more information in a bulleted list below. Arguably this could use some UX love, but the whole dash could and ux/design review is an LMS backlog item for the instructor dash. Here's a screenshot of the (minimal) changes I made:

![screen shot 2013-10-15 at 6 46 18 pm](https://f.cloud.github.com/assets/1985317/1338696/89982fd4-35ec-11e3-975e-5ed6a0b0b8c0.png)

@adampalay @flowerhack  ( @marcotuts if you have a quick second - I know this isn't beautiful but if you can take a quick look to confirm it's not absolutely hideous...)