Create BlogPage.php

BlogPage.php checks the $_GET['blog_ID'] status and creates 3 possible pages.
 1: user not logged in, sees the contents of the blog, and a link to log in.
 2: user logged in but looking at someone elses blog, sees the blogs contents and links to comment on the entries
3: user logged in and seeing their blog, sees the blogs contents, links to comments on the entries, and a new post form at the bottom of the page. right not new post points to a page that hasnt been created or uploaded yet, i should finish the early skeleton tonight/tomorrow.

Still needs to be married to the log-in and index pages so everything links to it with the correct $_get info
Still needs to be have the divs given classes and some css styling.