Footer

* The links for By Issue, By Country and By Volunteer are somehwhat
broken right now because all we can do is take them to project sorter.
* Guessed on links for everything else, think they are right.
* Did not implement social links, ran out of time and did not have icons
or info of where they should go.
CSS
Merge branch 'ehnc-footer' of github.com:msecret/peacecorps-site into ehnc-footer