spec: add tiny-mce left-to-right button check
spec: add tiny-mce left-to-right button check

Change-Id: I59f64d8a142e22fd2df6ab9cb5358fdfd9a44c05
Reviewed-on: https://gerrit.instructure.com/68555
Tested-by: Jenkins
Product-Review: Jeremy Putnam <b030d6d6f199f844ec424882be473c2ab9adc93b@instructure.com>
QA-Review: Jeremy Putnam <b030d6d6f199f844ec424882be473c2ab9adc93b@instructure.com>
Reviewed-by: August Thornton <9adc7a1161ddf32ff608de792a7e50179545f026@instructure.com>

HotChalk/canvas-lms,matematikk-mooc/canvas-lms,venturehive/canvas-lms,HotChalk/canvas-lms,sfu/canvas-lms,snehakachroo1/LSI_replica,grahamb/canvas-lms,instructure/canvas-lms,grahamb/canvas-lms,djbender/canvas-lms,snehakachroo1/LSI_replica,djbender/canvas-lms,fronteerio/canvas-lms,SwinburneOnline/canvas-lms,djbender/canvas-lms,redconfetti/canvas-lms,sfu/canvas-lms,sfu/canvas-lms,HotChalk/canvas-lms,matematikk-mooc/canvas-lms,dgynn/canvas-lms,instructure/canvas-lms,HotChalk/canvas-lms,redconfetti/canvas-lms,matematikk-mooc/canvas-lms,instructure/canvas-lms,roxolan/canvas-lms,snehakachroo1/LSI_replica,instructure/canvas-lms,sfu/canvas-lms,instructure/canvas-lms,instructure/canvas-lms,fronteerio/canvas-lms,redconfetti/canvas-lms,grahamb/canvas-lms,grahamb/canvas-lms,sfu/canvas-lms,matematikk-mooc/canvas-lms,fronteerio/canvas-lms,snehakachroo1/LSI_replica,SwinburneOnline/canvas-lms,sfu/canvas-lms,roxolan/canvas-lms,venturehive/canvas-lms,dgynn/canvas-lms,fronteerio/canvas-lms,SwinburneOnline/canvas-lms,redconfetti/canvas-lms,roxolan/canvas-lms,SwinburneOnline/canvas-lms,venturehive/canvas-lms,dgynn/canvas-lms,djbender/canvas-lms,venturehive/canvas-lms,grahamb/canvas-lms,roxolan/canvas-lms,sfu/canvas-lms,dgynn/canvas-lms,instructure/canvas-lms