Merge pull request #9 from rjmcdonald83/ui_changes

UI changes
Updated About page—can now go live as-is
Revert "Updated About page—can now go live as-is"

This reverts commit 01584c8fd53be054e462646f9cb4430a8409f701.
Merge pull request #10 from rjmcdonald83/ui_changes

Add Conditional to Sponsors and Speakers to Catch nil
Pulled out dummy sponsor and speaker data
Sponsors have lighter and darker images
Add style to speaker description links fixes #7
Make footer sticky
Add style to speaker description links