Mobile jump - Major changes

Major changes:
- incorporated header and footer into the main index file
- deleted header and footer files
- deleted many css and js files that are not needed
- changed main index.php to html and removed all php
- changed website theme to mobile
- removed lots of un-needed
code in the index file, js, css, and divs
- reduced navigation to 3 nav links
- removed old comments in new index.html

Minor changes:
- cleaned up the external doc