Added new Database Method

add_authorized_user()
Add an authorized user to the 'users' table.
Added todo Note on Database Method
Spelling Corrections in Database and Authorship
Updated README
Remove Site Specific Content
Merge branch 'master' into db
Default Page Including on index.php

Added the property default_page to the Nav object, and in controller the
get_page_from_uri function will include the default_page if set in the
nav_config.

getter for private default_page property of Nav.

Calling the get_page_from_uri function from the controller on index
page.
Dont Need to Print the get_page_from_uri Function)
Merge branch 'master' into db
Cleaned out Methods and Properties

Removed some methods and properties from the Database class that was
useful before the query method was added.
Added a todo in controller.php
Removed Linking to Non-Existent Files