Merge pull request #13 from lolzballs/master

Fixed download link for real
Removed stuff about experimental branch
Moved files around for better organization

Reference header.php and footer.php from the includes folder
Added database info and login script

PLEASE note that when I wrote db_constants.php, I was not aware that
mysql functions were deprecated. When I get a chance, I will change the
functions over to mysqli, but somebody else can do it if I don't get to
it soon.
Added [very basic] user implementation around the site

Needs style, links, and actions. I can try to do some of the PHP
scripts, I just can't do the CSS part very well.
Minor fixes
Moving files around for better organization
Minor fixes
Simple style improvment
Added login UI for the site

Nobody can login yet, because there is not a register script, yet.
We don't need jQuery UI anymore, we will use the one supplied by Google API
Added registration, validation via ModShare, and fixed login script
Added logout
Added verification via Scratch, credit to jvvg
Debugging new signup system
Perfecting register system with Scratch verification

credit to jvvg for letting us use his system
ModShare upload script

This script is for later, when we get further. It allows for uploading
directly to ModShare.
Added JsScratch player

Credit to MathWhiz
Style fixes
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