Fix tanks-js loading bug
Fix tanks-js loading bug

Loading loop was checking one pixel to be white, but different browsers
and operating systems render text too differently, so now we loop
through every red pixel.

peternatewood/peternatewood.github.io,peternatewood/peternatewood.github.io,peternatewood/peternatewood.github.io,RoyTuesday/RoyTuesday.github.io,RoyTuesday/RoyTuesday.github.io