add auxiliary helper methods in application helper
add auxiliary helper methods in application helper

tgoldenberg/hack-overflow,tgoldenberg/hack-overflow,tekd/hack-overflow,tgoldenberg/hack-overflow,tekd/hack-overflow,nyc-dragonflies-2015/hack-overflow,tekd/hack-overflow,nyc-dragonflies-2015/hack-overflow,nyc-dragonflies-2015/hack-overflow