bootstrap: fix hover/delete for registered services
bootstrap: fix hover/delete for registered services

fixes CNVS-4735

test plan:
 - add a registered service to your profile
   (e.g., Skype, Delicious, Diigo, etc.)
 - make sure it highlights properly when you mouse-over
 - make sure the delete button doesn't disappear when you
   move the mouse toward it

Change-Id: I08770fa279cdadf645d4d9d4b982f96a1635192f
Reviewed-on: https://gerrit.instructure.com/18710
Tested-by: Jenkins <d95b56ce41a2e1ac4cecdd398defd7414407cc08@instructure.com>
Reviewed-by: Bracken Mosbacker <48b846001bca4166dc3fb7711563afc17525921e@instructure.com>
Product-Review: Bracken Mosbacker <48b846001bca4166dc3fb7711563afc17525921e@instructure.com>
QA-Review: Adam Phillipps <0e18f44c1fec03ec4083422cb58ba6a09ac4fb2a@instructure.com>

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