Added news post CSS styles
Updated the news page.

This involves the front page's most display of the most recent news
post, The News page itself, and the layout of each news post's page.
Adding the first news post

This guy will be updated before the site goes live.
Merge pull request #38 from zachwhaley/add-some-news-posts

Add some news posts
Edited the greyhound profile pages

I Replaced the greyt-content class with the post-content class
because they did mostly the same thing.  I then removed greyt-content
from the main.css.