Chips away at our dependence on old jQuery
Also: Remove IE and old-Safari detection
Test plan:
- Load Canvas in Safari
- document.body should have 'safari' className
- Load Canvas in Chrome
- document.body should have 'chrome' className
- Load Canvas in Firefox
- document.body should have 'ff' className
flag=none
Refs FOO-87
Change-Id: I27547cce9d6feaaa44c442590962476345229173
Reviewed-on: https://gerrit.instructure.com/c/canvas-lms/+/315224
Reviewed-by: Spencer Olson <solson@instructure.com>
Reviewed-by: Derek Williams <derek.williams@instructure.com>
Tested-by: Service Cloud Jenkins <svc.cloudjenkins@instructure.com>
QA-Review: Spencer Olson <solson@instructure.com>
Product-Review: Spencer Olson <solson@instructure.com>