Developer tools updated. Page builder now integrates with sitemap. Better UI. Various fixes. See details.

Refactored URL parser into a new MinnowRequest class so it can be used
within application logic (like in the scaffolding pages).
Fixed an error in the Sitemap XML that was causing it to error when it
could no longer find the template file.
Linked Sitemap XML to the sitemap table in the db.
Updated the scaffolding pages with better UI (one down, one to go).
DB Schema update for sitemap table.
Updated css/iconography for Bootstrap library. Images werent loading.
Updated some UI elements on sign on forms to show off icons/bootstrap.
Removed Keywords and Page Author from HTML as they aren't useful to SEO.