Multitude of Minor Changes

- Started using HtmlCompressor JAR
- Switched from using local jQuery.js to using Google CDN's
- Declared some attributes in contestTabulation package final
- Fixed bug in registration servlet that didn't store registration
numbers equal to 0
- Made validation in registration HTML clearer and more effective
- Changed CSS labeling in registration HTML and removed resulting
extraneous CSS
- Added pretty icons all over
- Changed display format of time on results pages
- Made sidebar on results pages sticky (stays visible)
- Fixed indentation in some HTML
- Replaced event handlers in HTML that refuse to die with jQuery