use right icon for calendar on course settings page
use right icon for calendar on course settings page

should look more like this: http://screencast.com/t/FoUzq55OAr
than this: http://screencast.com/t/24QslWCGuBd

Change-Id: Id20e19c70908b508b13d4a0766347e45aab8a21f
Reviewed-on: https://gerrit.instructure.com/15811
Tested-by: Jenkins <d95b56ce41a2e1ac4cecdd398defd7414407cc08@instructure.com>
Reviewed-by: Chris Hart <711c73f64afdce07b7e38039a96d2224209e9a6c@12spokes.com>

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