Redesign package details

Old on the left, new on the right.

![screen shot 2014-08-26 at 11 07 10 pm](https://cloud.githubusercontent.com/assets/2289/4055913/91109834-2db0-11e4-8ea1-3321011a410f.png)

![screen shot 2014-08-26 at 11 07 19 pm](https://cloud.githubusercontent.com/assets/2289/4055914/95c642ca-2db0-11e4-808d-a05f420703a8.png)