Php option

- Removed "demos" section, now using examples from main module content
- Created HTML version for those not using PHP
- PHP version benefits:
  - dynamic content
    - uses includes to pull in content, makes it easy to display the same content with different styling
    - also allows simple compilation of modules for creating layouts
  - pulls Google Analytics and type scripts into each page
    - only need to edit scripts in one place
 - cleaner code