Change header background from 95% to 90% grey

sigh
Remove image borders in IE (hopefully)

Issue #3, attempt 1
Decrease article body font size

Freakishly huge on normal screens
Adjust layout styling for homepage, article view

* Fixed the overlay positioning for the 3-column row
* Changed header width to 100%, with 30px padding on the sides
* Changed main body width to 1000px
* Probably something else
Change bottom-border color for article description
Merge branch 'master' of github.com:dellsystem/ctlibre.com