speed up SIS imports dramatically
speed up SIS imports dramatically

Change-Id: Ida224803f82aaddc8cf3d2821d0b222a79a28817
Reviewed-on: https://gerrit.instructure.com/5382
Tested-by: Hudson <dfb64870173313a9a7b56f814c8e3b33e268497a@instructure.com>
Reviewed-by: Brian Palmer <3cb4e1df5ec4da2c7c4af7c52cec8cf340a55a10@instructure.com>

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