use ruby-debug19 in ruby 1.9
use ruby-debug19 in ruby 1.9

also add the test-unit library for rspec in 1.9

Change-Id: I1be6d3c97421d9664cbbd46bc045b608694d1026
Reviewed-on: https://gerrit.instructure.com/5840
Tested-by: Jenkins <d95b56ce41a2e1ac4cecdd398defd7414407cc08@instructure.com>
Reviewed-by: Brian Palmer <3cb4e1df5ec4da2c7c4af7c52cec8cf340a55a10@instructure.com>

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