Added placeholder and button, also commented lines of code.

Added in a placeholded for a small description; in addition to a button
that will allow the user to sign up if they don't have an account.
Commented out expense list to focus on the login screen.
Edited text

Changed header from About to FairCounts in order to keep the design
more consistent. Enabled the home button so that it directs the user to
the login page.
Change the CSS font

Changed the CSS font to include Gill Sans Light, Helvetica Neue Light
and Verdana. Also inadvertently changed the colors.
Merge branch 'Design-Edits'