fixup table borders tinyMCE commit.
fixup table borders tinyMCE commit.

Change-Id: Ic83a3b963817e1d28a1e27f0d48a558de7766075
fixes-up: 3caaf5d97fda8e0830d200d5b7d925b6c52d425a
Reviewed-on: https://gerrit.instructure.com/2603
Reviewed-by: Zach Wily <9de8c4480303b5335cd2a33eefe814615ba3612a@instructure.com>
Tested-by: Hudson <dfb64870173313a9a7b56f814c8e3b33e268497a@instructure.com>

matematikk-mooc/canvas-lms,AndranikMarkosyan/lms,grahamb/canvas-lms,wye0220/shindig-canvas,parbros/red-innovadores-lms,shidao-fm/canvas-lms,usmschuck/canvas,roxolan/canvas-lms,tgroshon/canvas-lms,Jyaasa/canvas-lms,usmschuck/canvas,rup/Tarrax,dgynn/canvas-lms,djbender/canvas-lms,greyhwndz/canvas-lms,landonwilkins/canvas-lms,landonwilkins/canvas-lms,grahamb/canvas-lms,merichar/canvas-lms,merichar/canvas-lms,efrj/canvas-lms,arrivu/jigsaw-lms,wye0220/shindig-canvas,utkarshx/canvas-lms,kyroskoh/canvas-lms,rup/Tarrax,samuels410/greatlakes-lms,venturehive/canvas-lms,sli7246/canvas_branch,whalejasmine/canvas-lms,arrivu/arrivu-lms,whalejasmine/canvas-lms,faraazkhan/canvas,faraazkhan/canvas,wrdsb/canvas-lms,wimemx/Canvas,instructure/canvas-lms,arrivu/arrivu-lms,instructure/canvas-lms,va7map/canvas-lms,nditech/red-innovadores-lms,snehakachroo1/LSI_replica,efrj/canvas-lms,AndranikMarkosyan/lms,arrivu/hoodemo,antoniuslin/canvas-lms,ankithbti/canvas_lms,arrivu/jigsaw-lms,jay3126/canvas-lms,samuels410/greatlakes-lms,ShreniiNepal/shrenii_lmp,sfu/canvas-lms,shidao-fm/canvas-lms,sdeleon28/canvas-lms,utkarshx/canvas-lms,landonwilkins/canvas-lms,icelab/canvas,nditech/red-innovadores-lms,shidao-fm/canvas-lms,redconfetti/canvas-lms,matematikk-mooc/canvas-lms,va7map/canvas-lms,fronteerio/canvas-lms,samuels410/greatlakes-lms,arrivu/hoodemo,leftplusrightllc/canvas-lms,sfu/canvas-lms,arrivu/qibla-ecampus,wimemx/Canvas,Rvor/canvas-lms,va7map/canvas-lms,sfu/canvas-lms,loganrun/pincan,sfu/canvas-lms,efrj/canvas-lms,wye0220/shindig-canvas,arrivu/arrivu-lms,roxolan/canvas-lms,juoni/canvas-lms,fronteerio/canvas-lms,ShreniiNepal/shrenii_lmp,fronteerio/canvas-lms,wimemx/Canvas,juoni/canvas-lms,sli7246/canvas_branch,arrivu/hiring-site,wrdsb/canvas-lms,arrivu/jigsaw-lms,narigone/canvas,arrivu/hiring-site,Jyaasa/canvas-lms,em2/canvas-lms,eCNAP/CANVAS,sli7246/canvas_branch,gbleydon/canvas-lms,usmschuck/canvas,ShreniiNepal/shrenii_lmp,merichar/canvas-lms,Unow/ins,matematikk-mooc/canvas-lms,utkarshx/canvas-lms,greyhwndz/canvas-lms,redconfetti/canvas-lms,em2/canvas-lms,djbender/canvas-lms,sfu/canvas-lms,Unow/canvas-lms,leftplusrightllc/canvas-lms,grahamb/canvas-lms,Unow/canvas-lms,gbleydon/canvas-lms,roxolan/canvas-lms,ottenhoff/canvas-lms,dgynn/canvas-lms,arrivu/qibla-ecampus,em2/canvas-lms,AndranikMarkosyan/lms,fronteerio/canvas-lms,juoni/canvas-lms,sdeleon28/canvas-lms,matematikk-mooc/canvas-lms,SwinburneOnline/canvas-lms,SwinburneOnline/canvas-lms,redconfetti/canvas-lms,jay3126/canvas-lms,tgroshon/canvas-lms,whalejasmine/canvas-lms,djbender/canvas-lms,sfu/canvas-lms,djbender/canvas-lms,eCNAP/CANVAS,ankithbti/canvas_lms,venturehive/canvas-lms,icelab/canvas,SwinburneOnline/canvas-lms,HotChalk/canvas-lms,skmezanul/canvas-lms,juoni/canvas-lms,arrivu/hiring-site,arrivu/hoodemo,nditech/red-innovadores-lms,grahamb/canvas-lms,snehakachroo1/LSI_replica,faraazkhan/canvas,parbros/red-innovadores-lms,venturehive/canvas-lms,eCNAP/CANVAS,Rvor/canvas-lms,antoniuslin/canvas-lms,va7map/canvas-lms,tgroshon/canvas-lms,wrdsb/canvas-lms,nditech/red-innovadores-lms,parbros/red-innovadores-lms,loganrun/pincan,rup/Tarrax,skmezanul/canvas-lms,samuels410/greatlakes-lms,ankithbti/canvas_lms,greyhwndz/canvas-lms,usmschuck/canvas,gbleydon/canvas-lms,grahamb/canvas-lms,antoniuslin/canvas-lms,kyroskoh/canvas-lms,kyroskoh/canvas-lms,sdeleon28/canvas-lms,jay3126/canvas-lms,instructure/canvas-lms,whalejasmine/canvas-lms,instructure/canvas-lms,dgynn/canvas-lms,snehakachroo1/LSI_replica,icelab/canvas,snehakachroo1/LSI_replica,HotChalk/canvas-lms,greyhwndz/canvas-lms,jay3126/canvas-lms,sfu/canvas-lms,narigone/canvas,Rvor/canvas-lms,instructure/canvas-lms,roxolan/canvas-lms,landonwilkins/canvas-lms,ottenhoff/canvas-lms,Unow/ins,Unow/ins,Rvor/canvas-lms,wrdsb/canvas-lms,kyroskoh/canvas-lms,efrj/canvas-lms,redconfetti/canvas-lms,loganrun/pincan,dgynn/canvas-lms,HotChalk/canvas-lms,ottenhoff/canvas-lms,skmezanul/canvas-lms,AndranikMarkosyan/lms,narigone/canvas,Jyaasa/canvas-lms,tgroshon/canvas-lms,leftplusrightllc/canvas-lms,arrivu/qibla-ecampus,Jyaasa/canvas-lms,antoniuslin/canvas-lms,shidao-fm/canvas-lms,sdeleon28/canvas-lms,SwinburneOnline/canvas-lms,skmezanul/canvas-lms,venturehive/canvas-lms,leftplusrightllc/canvas-lms,utkarshx/canvas-lms,instructure/canvas-lms,HotChalk/canvas-lms,narigone/canvas,eCNAP/CANVAS,Unow/canvas-lms,ShreniiNepal/shrenii_lmp,instructure/canvas-lms