Add support for safari browser for local selenium test
Add support for safari browser for local selenium test

Change-Id: I8648263dbe0c2b2dd14791e4b1c94c00bf691936
Reviewed-on: https://gerrit.instructure.com/120437
Tested-by: Jenkins
Reviewed-by: Santosh Natarajan <513d2c120bea51d9a73bf68ff9748cbc4aba4443@instructure.com>
Product-Review: Santosh Natarajan <513d2c120bea51d9a73bf68ff9748cbc4aba4443@instructure.com>
QA-Review: Santosh Natarajan <513d2c120bea51d9a73bf68ff9748cbc4aba4443@instructure.com>

instructure/canvas-lms,djbender/canvas-lms,venturehive/canvas-lms,sfu/canvas-lms,venturehive/canvas-lms,instructure/canvas-lms,instructure/canvas-lms,sfu/canvas-lms,sfu/canvas-lms,sfu/canvas-lms,instructure/canvas-lms,sfu/canvas-lms,djbender/canvas-lms,venturehive/canvas-lms,sfu/canvas-lms,sfu/canvas-lms,instructure/canvas-lms,venturehive/canvas-lms,djbender/canvas-lms,instructure/canvas-lms,djbender/canvas-lms,instructure/canvas-lms