Move css to assets folder, fix missing image in css.
Create a class ThemeCheckMain, fixes duplicate function load_styles reported in forums, plus looks better.

git-svn-id: http://plugins.svn.wordpress.org/theme-check@920047 b8457f37-d9ea-0310-8a92-e5e31aec5664
remove old style.css file

git-svn-id: http://plugins.svn.wordpress.org/theme-check@920048 b8457f37-d9ea-0310-8a92-e5e31aec5664
Create README.md
Update README.md
Merge branch 'master' of github.com:Pross/theme-check