allow to enable Bullet::ActiveRecord and Bullet::Mongoid at same time
allow to enable Bullet::ActiveRecord and Bullet::Mongoid at same time

rrosenblum/bullet,eileencodes/bullet,sho-h/brakefast,flyerhzm/bullet,jay3126/bullet,hannahbot/bullet,danp60/bullet,flyerhzm/bullet,theass/bullet,hannahbot/bullet,rstacruz/bullet,danp60/bullet,yakovenkodenis/bullet,dwb/bullet,jay3126/bullet,yakovenkodenis/bullet,sideci-sample/sideci-sample-bullet,dwb/bullet,rstacruz/bullet,PikachuEXE/bullet,rrosenblum/bullet,flyerhzm/bullet,theass/bullet,PikachuEXE/bullet,sideci-sample/sideci-sample-bullet,sho-h/brakefast,eileencodes/bullet