Adds a `public` modifier to FileHelpers to let it build in Archive mode
Adds a `public` modifier to FileHelpers to let it build in Archive mode

For whatever reason, FileHelpers will only build for archiving with the public keyword. It works fine everywhere else.

OneBusAway/onebusaway-iphone,themonki/onebusaway-iphone,OneBusAway/onebusaway-iphone,OneBusAway/onebusaway-iphone,ualch9/onebusaway-iphone,ualch9/onebusaway-iphone,OneBusAway/onebusaway-iphone,cathy810218/onebusaway-iphone,themonki/onebusaway-iphone,themonki/onebusaway-iphone,themonki/onebusaway-iphone,ualch9/onebusaway-iphone,cathy810218/onebusaway-iphone,ualch9/onebusaway-iphone,OneBusAway/onebusaway-iphone,cathy810218/onebusaway-iphone,themonki/onebusaway-iphone,ualch9/onebusaway-iphone,cathy810218/onebusaway-iphone