Reverse dependencies for stall

Latest version of the following gems require stall

Gem	Version	Date	Downloads
stall-atos +5.48 Thousand Downloads	`0.2.0` February 01, 2017	February 01, 2017	5.48 Thousand
stall-cmcic +2.97 Thousand Downloads	`0.2.0` February 01, 2017	February 01, 2017	2.97 Thousand
stall-authorize_dot_net +2.84 Thousand Downloads	`0.2.0` February 01, 2017	February 01, 2017	2.84 Thousand