Used compass mixin for text-shadow

-Change applied to both .banner-large and .banner-small
-Previously was a declaration in the rule
-Code moved to the "Extras" section at the end
Made ".site-name" rules into "header .site-name"

-Applies to @media with max-width of 480px and widths 480px-767px
-Rule was intended to resize the site-name in the header only, but
previous version also affected text in the my-sites-menu when
signed in (My Profile and My Dashboard for example).
-Now it is more specific and does not cause these issues
Fix formatting for dropHeader properties

-Eliminated extra line returns
-Moved -vendor-prefixes before the standard property
Added additional sans-serif fonts as fallbacks

Affects the link-to-content and the page-title in the header
Added additional sans-serif fonts as fallbacks

Affects the body, h1-h6 headings, and footer text
Alphabetizing selectors

Affects links in the dockbar
Remove unnecessary inline comments

They were originally referring to the "body" rules inside of the
@media for max-width 480px and 481-767px
Removed id #_145_navAccountControlsNavbarBtn

-Previously in @media with max-width of 979px when signed in
-Intended to control the appearance of buttons in the dockbar
-Removed because the underscore as the leading character could
cause other problems
-Had to change other items in the dockbar to replicate the old
appearance
Ensuring dockbar buttons sizes are consistent

-Added "box-sizing: border-box" to the .signed-in .btn-navbar
-Before, this was implemented for widths up to 767px in aui.css,
but not for widths between 768px and 979px, causing the buttons
to resize and appear strangely
Removed id starting with _ for nav-collapse class

-Before, there was #_145_navAccountControlsNavbarCollapse for
(left button) and #_145_navAddControlsNavbarCollapse (middle
button). These used to have different settings to place them
under the appropriate button
-They were removed because the underscore in the id name could
cause issues
-Now, both are positioned based off a percentage of the right
side of the page -- less than ideal, but no good way to
differentiate the two menus
Add controls hidden for signed out dockbar

-Previously, this was controlled by an id selector, but the id
starts with an undercore, which could cause issues
-Now, the rules uses the nth-child pseudo-selector, which isn't
ideal, but there's not a good way to identify just this one link