Quick fix for coverage styling bleeding into other logic elements

#### Story ####
- https://www.pivotaltracker.com/story/show/67835442

#### Notes ####
- updated <code>eval_coverage</code> style to reset ```<li>``` styles to reflect uncovered state rather than editing logic templates
- this is intended as a short-term fix, which will be backed out or overridden when pophealth measure logic gets ported over to bonnie

#### Screenshots ####
- previous styles with bleeding coverage
  - ![screen shot 2014-03-19 at 3 13 40 pm](https://f.cloud.github.com/assets/456952/2464872/1be678cc-af9c-11e3-81d8-c4c7abc319bc.png)
- updated styles with fixed coverage
  - ![screen shot 2014-03-19 at 3 14 31 pm](https://f.cloud.github.com/assets/456952/2464873/1be97446-af9c-11e3-98bd-ad7d856f96fe.png)