Implement raidpage.

A few notes:

 * Couldn't test anything.
 * Form submits to whole windows instead of frame.
 * Timers do not count down.
 * Hidden buttons are not shown when timers hit zero.
 * Profit bar looks ugly.
 * Forms work differently than the old version. Old version had one
   form with a submit button per spot. Now, there is only one form,
   and there are no submit buttons, just regular buttons per spot.
   Clicking on them enters the type value in the one form and submits
   it. Main advantage of it is that constant updating of all driver
   and bullets information is not needed anymore.