Add details for supporting IE 6, 7 & 8
Add details for supporting IE 6, 7 & 8

lognormal/boomerang,FredXue/boomerang,sdgdsffdsfff/boomerang,FredXue/boomerang,sdgdsffdsfff/boomerang,lognormal/boomerang,levexis/boomerang,levexis/boomerang