Help Overview - Styling, Content Segragation

Chris, everyone:

This pull fixes some of the current issues with the overview display and screen options. I need to go through and do full responsive styling but this will make it fully functional for the time being. Also in this pull you will notice the creation of a docs folder. I've setup the code so it will look in this folder for help content based on the page ids as discussed in the issue. The docs team should reference the "themes.php" file to see how to clear existing data. The "plugins.php" file shows how to add content.