add ability to disable a plugin at init time
add ability to disable a plugin at init time

levexis/boomerang,FredXue/boomerang,forcedotcom/kylie,sdgdsffdsfff/boomerang,yahoo/boomerang,sdgdsffdsfff/boomerang,levexis/boomerang,lognormal/boomerang,forcedotcom/kylie,lognormal/boomerang,FredXue/boomerang