New color theme for footer.

Summary:
rDOCKERWWW4385a0079118 has introduced a poorly contrasted footer.

We use #01B1AA as core hue, a trending color according a Shutterstock
study located at http://www.shutterstock.com/trends/colors/2015.

Test Plan:

• csslint for CSS
• footer colors tested against http://webaim.org/resources/contrastchecker/

Reviewers: Kaliiixx

Subscribers: Nasqueron Docker deployment squad

Projects: Docker images

Differential Revision: http://devcentral.nasqueron.org/D71