Added main menu div to index.php

Main menu on the front page is a 2x3 grid of the main sections.  On other pages the main menu will be 1x6 bar under the navigation.
Edited main menu to have be responsive to viewport size changes.
Added logo section at top.  Rearranged main menu and added side menu.
Changed font to Open Sans and tweaked font sizes.
Added responsive design for less than 900px.
Changed to high res banner image
Removed low res banner image
Rearrange main menu to be a thinner toolbar under banner.  Added home button (still needs logo).
Added news section with background image.  Added Home button image.