Adding search and login

**DON'T MERGE THIS YET**

Obviously, a whole lot more went into it than the title says. Splash.js has been changed drastically, and index.html has been converted to index.php. A working clone can be found at http://botlzoo.x10.mx/test/seaside/ . Please look at it and let me know if you find any glitches. It has been tested on IE-11, Chrome, iOS Safari, OSX Safari, and FF-Something. Especially look at it on mobile devices. I don't know how it will behave on Android.