whitespace cleanup on "_layouts/categories.html"
update header on "_layouts/default.html" and "_layouts/post.html"

a new <div> was added that wrapped the <h1> and <h2> in <header>
but only on one layout.  it's now added to all the layouts
add "kaidez-social-network-list-item" back to the project for styling footer social network icons
add proper RequireJS 'baseURL' to 'config.js'

was '../js', which is bad.  make it '/js', which is correct
add "page-content" class to <main> element in post.html
add "containing-element" class to <main> element in categories.html
whitespace cleanup on index.html