spec: be tolerant of additional keys
spec: be tolerant of additional keys

some plugins may add fields to the version json

Change-Id: Ieeba1c30bfa9c0a14d9de4efcaae5a67411fb5b9
Reviewed-on: https://gerrit.instructure.com/20175
Tested-by: Jenkins <d95b56ce41a2e1ac4cecdd398defd7414407cc08@instructure.com>
Reviewed-by: Brian Palmer <3cb4e1df5ec4da2c7c4af7c52cec8cf340a55a10@instructure.com>
Product-Review: Brian Palmer <3cb4e1df5ec4da2c7c4af7c52cec8cf340a55a10@instructure.com>
QA-Review: Brian Palmer <3cb4e1df5ec4da2c7c4af7c52cec8cf340a55a10@instructure.com>

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