ensure tinymce gets our bootstrap overrides, fixes CNVS-5024
ensure tinymce gets our bootstrap overrides, fixes CNVS-5024

test plan:
1. create a page with an <h2>
2. the <h2> should be the same weight (normal) and size when editing or
   viewing the page

Change-Id: I408dffbc794be22361bd38cec055b74ce5d8d38f
Reviewed-on: https://gerrit.instructure.com/19187
Reviewed-by: Stanley Stuart <2b43fb8b7a234825d50dd49ce7892d78a59da8f3@instructure.com>
QA-Review: Clare Hetherington <40d6bb3ed7fef516c73274131d5a837c16de74fd@instructure.com>
Tested-by: Bryan Madsen <0a3ba1af216659500dd8f41e29f3979f42452870@instructure.com>
Product-Review: Bryan Madsen <0a3ba1af216659500dd8f41e29f3979f42452870@instructure.com>

va7map/canvas-lms,AndranikMarkosyan/lms,Unow/canvas-lms,venturehive/canvas-lms,fronteerio/canvas-lms,Jyaasa/canvas-lms,arrivu/jigsaw-lms,grahamb/canvas-lms,jay3126/canvas-lms,loganrun/pincan,antoniuslin/canvas-lms,narigone/canvas,AndranikMarkosyan/lms,va7map/canvas-lms,shidao-fm/canvas-lms,wye0220/shindig-canvas,fronteerio/canvas-lms,Unow/ins,Rvor/canvas-lms,wrdsb/canvas-lms,loganrun/pincan,SwinburneOnline/canvas-lms,sfu/canvas-lms,snehakachroo1/LSI_replica,wimemx/Canvas,landonwilkins/canvas-lms,arrivu/arrivu-lms,roxolan/canvas-lms,arrivu/hoodemo,venturehive/canvas-lms,merichar/canvas-lms,djbender/canvas-lms,arrivu/qibla-ecampus,Rvor/canvas-lms,grahamb/canvas-lms,wrdsb/canvas-lms,jay3126/canvas-lms,wimemx/Canvas,eCNAP/CANVAS,fronteerio/canvas-lms,instructure/canvas-lms,antoniuslin/canvas-lms,efrj/canvas-lms,usmschuck/canvas,usmschuck/canvas,ShreniiNepal/shrenii_lmp,SwinburneOnline/canvas-lms,dgynn/canvas-lms,arrivu/hoodemo,kyroskoh/canvas-lms,shidao-fm/canvas-lms,wrdsb/canvas-lms,arrivu/hoodemo,skmezanul/canvas-lms,ShreniiNepal/shrenii_lmp,juoni/canvas-lms,sli7246/canvas_branch,ShreniiNepal/shrenii_lmp,dgynn/canvas-lms,jay3126/canvas-lms,loganrun/pincan,jay3126/canvas-lms,matematikk-mooc/canvas-lms,eCNAP/CANVAS,kyroskoh/canvas-lms,snehakachroo1/LSI_replica,shidao-fm/canvas-lms,djbender/canvas-lms,usmschuck/canvas,landonwilkins/canvas-lms,utkarshx/canvas-lms,juoni/canvas-lms,instructure/canvas-lms,tgroshon/canvas-lms,va7map/canvas-lms,tgroshon/canvas-lms,tgroshon/canvas-lms,sdeleon28/canvas-lms,fronteerio/canvas-lms,whalejasmine/canvas-lms,skmezanul/canvas-lms,ShreniiNepal/shrenii_lmp,sfu/canvas-lms,tgroshon/canvas-lms,sfu/canvas-lms,venturehive/canvas-lms,narigone/canvas,utkarshx/canvas-lms,greyhwndz/canvas-lms,whalejasmine/canvas-lms,matematikk-mooc/canvas-lms,arrivu/jigsaw-lms,SwinburneOnline/canvas-lms,juoni/canvas-lms,AndranikMarkosyan/lms,Unow/ins,leftplusrightllc/canvas-lms,grahamb/canvas-lms,wrdsb/canvas-lms,kyroskoh/canvas-lms,merichar/canvas-lms,djbender/canvas-lms,arrivu/qibla-ecampus,sdeleon28/canvas-lms,Unow/ins,sfu/canvas-lms,narigone/canvas,instructure/canvas-lms,matematikk-mooc/canvas-lms,wimemx/Canvas,efrj/canvas-lms,eCNAP/CANVAS,arrivu/arrivu-lms,va7map/canvas-lms,SwinburneOnline/canvas-lms,shidao-fm/canvas-lms,samuels410/greatlakes-lms,sfu/canvas-lms,wye0220/shindig-canvas,Rvor/canvas-lms,HotChalk/canvas-lms,narigone/canvas,arrivu/arrivu-lms,kyroskoh/canvas-lms,sfu/canvas-lms,Jyaasa/canvas-lms,arrivu/qibla-ecampus,Rvor/canvas-lms,HotChalk/canvas-lms,Unow/canvas-lms,snehakachroo1/LSI_replica,efrj/canvas-lms,dgynn/canvas-lms,Unow/canvas-lms,sli7246/canvas_branch,samuels410/greatlakes-lms,AndranikMarkosyan/lms,skmezanul/canvas-lms,gbleydon/canvas-lms,dgynn/canvas-lms,redconfetti/canvas-lms,usmschuck/canvas,samuels410/greatlakes-lms,utkarshx/canvas-lms,leftplusrightllc/canvas-lms,landonwilkins/canvas-lms,arrivu/jigsaw-lms,gbleydon/canvas-lms,merichar/canvas-lms,whalejasmine/canvas-lms,roxolan/canvas-lms,grahamb/canvas-lms,matematikk-mooc/canvas-lms,greyhwndz/canvas-lms,leftplusrightllc/canvas-lms,leftplusrightllc/canvas-lms,djbender/canvas-lms,Jyaasa/canvas-lms,landonwilkins/canvas-lms,juoni/canvas-lms,redconfetti/canvas-lms,utkarshx/canvas-lms,instructure/canvas-lms,skmezanul/canvas-lms,roxolan/canvas-lms,grahamb/canvas-lms,Jyaasa/canvas-lms,wye0220/shindig-canvas,efrj/canvas-lms,sdeleon28/canvas-lms,whalejasmine/canvas-lms,greyhwndz/canvas-lms,gbleydon/canvas-lms,sfu/canvas-lms,instructure/canvas-lms,sli7246/canvas_branch,samuels410/greatlakes-lms,antoniuslin/canvas-lms,antoniuslin/canvas-lms,HotChalk/canvas-lms,venturehive/canvas-lms,instructure/canvas-lms,greyhwndz/canvas-lms,snehakachroo1/LSI_replica,instructure/canvas-lms,redconfetti/canvas-lms,redconfetti/canvas-lms,eCNAP/CANVAS,roxolan/canvas-lms,HotChalk/canvas-lms,sdeleon28/canvas-lms