Ignoring WebStorm-Jade HTML files

Ignoring the HTML files generated from Jade templates by WebStorm Jade
watcher.
Added PageTitleBar Mixin

Added a Jade Mixin to display page title / instructions below the
header.
Added PageTitleBar Mixin to Template/Script

Added the PageTitleBar Mixin to the login template and passed page
title variable from script.
Added Registration Template/Route

Added a /register route JS file and page template.  Updated app.js to
use the route.
Moved Style to Stylesheet

Moved header style to stylesheet, instead of using embedded style.
Added headerBar and pageTitleBar styles

Moved header style from header.jade template to stylesheet.  Added
pageTitleBar style.