assignments dragged to Saturday no longer break calendar function
assignments dragged to Saturday no longer break calendar function

test plan:
 * Navigate to calendar
 * Press "+" to create new event, switch to assignment
 * Create a few assignments on thursday, 2015-01-08
 * Drag one assignment to Saturday 2015-01-10
 * Notice that calendar does not break as it does in prod

Fixes CNVS-10532

Change-Id: Iee938249a3e3756ad73d4c5598a4a788d3b23bd9
Reviewed-on: https://gerrit.instructure.com/49104
Reviewed-by: Andrew Butterfield <c9c7a32d9a1e9779cfad12bed963960e7af36eac@instructure.com>
Tested-by: Jenkins
QA-Review: Steven Shepherd <e794458448443812fb2685675aab3bbd1a3891bc@instructure.com>
Product-Review: Matthew Wheeler <ce71fbafda91d6c8f12582e1837687d5fe592dd9@instructure.com>

Jyaasa/canvas-lms,roxolan/canvas-lms,dgynn/canvas-lms,efrj/canvas-lms,redconfetti/canvas-lms,grahamb/canvas-lms,Jyaasa/canvas-lms,AndranikMarkosyan/lms,skmezanul/canvas-lms,sfu/canvas-lms,ShreniiNepal/shrenii_lmp,wrdsb/canvas-lms,venturehive/canvas-lms,roxolan/canvas-lms,juoni/canvas-lms,grahamb/canvas-lms,sfu/canvas-lms,greyhwndz/canvas-lms,greyhwndz/canvas-lms,snehakachroo1/LSI_replica,tgroshon/canvas-lms,snehakachroo1/LSI_replica,snehakachroo1/LSI_replica,sfu/canvas-lms,matematikk-mooc/canvas-lms,whalejasmine/canvas-lms,antoniuslin/canvas-lms,eCNAP/CANVAS,HotChalk/canvas-lms,sfu/canvas-lms,kyroskoh/canvas-lms,skmezanul/canvas-lms,instructure/canvas-lms,SwinburneOnline/canvas-lms,dgynn/canvas-lms,snehakachroo1/LSI_replica,matematikk-mooc/canvas-lms,djbender/canvas-lms,eCNAP/CANVAS,Rvor/canvas-lms,eCNAP/CANVAS,ShreniiNepal/shrenii_lmp,Rvor/canvas-lms,va7map/canvas-lms,redconfetti/canvas-lms,Jyaasa/canvas-lms,roxolan/canvas-lms,grahamb/canvas-lms,djbender/canvas-lms,skmezanul/canvas-lms,leftplusrightllc/canvas-lms,grahamb/canvas-lms,sfu/canvas-lms,tgroshon/canvas-lms,kyroskoh/canvas-lms,HotChalk/canvas-lms,fronteerio/canvas-lms,instructure/canvas-lms,utkarshx/canvas-lms,fronteerio/canvas-lms,ShreniiNepal/shrenii_lmp,instructure/canvas-lms,HotChalk/canvas-lms,shidao-fm/canvas-lms,instructure/canvas-lms,utkarshx/canvas-lms,efrj/canvas-lms,sdeleon28/canvas-lms,leftplusrightllc/canvas-lms,jay3126/canvas-lms,instructure/canvas-lms,utkarshx/canvas-lms,AndranikMarkosyan/lms,samuels410/greatlakes-lms,sdeleon28/canvas-lms,wrdsb/canvas-lms,sdeleon28/canvas-lms,Rvor/canvas-lms,roxolan/canvas-lms,matematikk-mooc/canvas-lms,narigone/canvas,kyroskoh/canvas-lms,Rvor/canvas-lms,sfu/canvas-lms,va7map/canvas-lms,juoni/canvas-lms,antoniuslin/canvas-lms,ShreniiNepal/shrenii_lmp,samuels410/greatlakes-lms,narigone/canvas,tgroshon/canvas-lms,kyroskoh/canvas-lms,greyhwndz/canvas-lms,sfu/canvas-lms,jay3126/canvas-lms,dgynn/canvas-lms,leftplusrightllc/canvas-lms,shidao-fm/canvas-lms,antoniuslin/canvas-lms,redconfetti/canvas-lms,grahamb/canvas-lms,samuels410/greatlakes-lms,SwinburneOnline/canvas-lms,shidao-fm/canvas-lms,juoni/canvas-lms,fronteerio/canvas-lms,greyhwndz/canvas-lms,AndranikMarkosyan/lms,redconfetti/canvas-lms,Jyaasa/canvas-lms,utkarshx/canvas-lms,whalejasmine/canvas-lms,fronteerio/canvas-lms,antoniuslin/canvas-lms,whalejasmine/canvas-lms,skmezanul/canvas-lms,va7map/canvas-lms,HotChalk/canvas-lms,wrdsb/canvas-lms,SwinburneOnline/canvas-lms,wrdsb/canvas-lms,whalejasmine/canvas-lms,jay3126/canvas-lms,SwinburneOnline/canvas-lms,djbender/canvas-lms,narigone/canvas,venturehive/canvas-lms,matematikk-mooc/canvas-lms,samuels410/greatlakes-lms,shidao-fm/canvas-lms,venturehive/canvas-lms,dgynn/canvas-lms,instructure/canvas-lms,juoni/canvas-lms,jay3126/canvas-lms,narigone/canvas,leftplusrightllc/canvas-lms,instructure/canvas-lms,tgroshon/canvas-lms,va7map/canvas-lms,djbender/canvas-lms,efrj/canvas-lms,AndranikMarkosyan/lms,sdeleon28/canvas-lms,venturehive/canvas-lms,eCNAP/CANVAS,efrj/canvas-lms