Makes metrics use a framed version of the subsection panel style

NOTE: this change makes significant changes to both framed and unframed versions of subsections across the console. I’ve checked, but please verify that nothing is visually broken.

Before:
![screen shot 2014-11-14 at 9 56 11 am](https://cloud.githubusercontent.com/assets/186715/5050700/4a54d77a-6be5-11e4-9581-8ae31b7c4b29.png)

After:
![screen shot 2014-11-14 at 9 59 00 am](https://cloud.githubusercontent.com/assets/186715/5050704/4db05c8c-6be5-11e4-9dc8-7e7e41aee158.png)