Top Navigation Bar

The top navigation bar has been added. New img directory created that
contains the logo currently. General css styling has been implemented.
Formulae Section and improvements to Navigation

Added the Formulae Feature Section Module. Created new directory called
fonts. Added new css feature "inverse" to help with darker backgrounds.
Refinements of Formulae Section

Made the logo lighter, background darker. This suits the actual
Formulae theme better.
Merge branch 'New-Sections-Module'

Conflicts:
	SITE/index.html
	SITE/main.css