First pages commit
Merge branch 'master' into gh-pages

Conflicts:
	index.html
trying different iphone meta
try to fix roll dice css
Radiation modifiers display their effects on UI

The previous behavior was for radiation effects to silently remove a die after
users had selected whatever their normal amount of dice would be.  The new
behavior animates the effects of radiation within the UI by making dice
non-selectable when they are taken away by radiation.