Fixes #28. Overrides the generic span color

The problem was coming because of the generic color rule in enterpriseDashboard.css at the very start of the file. Since this file is loaded after dashboard.css hence the specific color rule which is defined in dashboard.css was getting overridden by this file.

To fix the issue I've again override the generic rule in the file enterpriseDashboard.css. Other solution was to change the order of the enterpriseDashboard.css and dashboard.css, since it is not feasible hence I've used this rule. 

![tc4](https://cloud.githubusercontent.com/assets/3061095/4953610/1288ae5a-6683-11e4-9cb5-42a1cd8c2dd3.png)