fix handlebars_tasks gem
fix handlebars_tasks gem

Change-Id: I83fcc2d0fc3a0ca390f35b33d349c32c5d5602cd

grahamb/canvas-lms,matematikk-mooc/canvas-lms,instructure/canvas-lms,instructure/canvas-lms,HotChalk/canvas-lms,djbender/canvas-lms,matematikk-mooc/canvas-lms,instructure/canvas-lms,venturehive/canvas-lms,HotChalk/canvas-lms,sfu/canvas-lms,djbender/canvas-lms,SwinburneOnline/canvas-lms,matematikk-mooc/canvas-lms,instructure/canvas-lms,instructure/canvas-lms,grahamb/canvas-lms,instructure/canvas-lms,SwinburneOnline/canvas-lms,HotChalk/canvas-lms,venturehive/canvas-lms,sfu/canvas-lms,grahamb/canvas-lms,matematikk-mooc/canvas-lms,sfu/canvas-lms,sfu/canvas-lms,sfu/canvas-lms,HotChalk/canvas-lms,venturehive/canvas-lms,SwinburneOnline/canvas-lms,SwinburneOnline/canvas-lms,djbender/canvas-lms,sfu/canvas-lms,instructure/canvas-lms,djbender/canvas-lms,sfu/canvas-lms,venturehive/canvas-lms,grahamb/canvas-lms,grahamb/canvas-lms