lodash

fixes CNVS-10326

test plan:
  * require(['underscore'], function(_) {console.log(_.name)})
  * test canvas

Change-Id: If0b0e1e26f5344492250603dc4f863d138c28832
Reviewed-on: https://gerrit.instructure.com/28174
Tested-by: Jenkins <jenkins@instructure.com>
Reviewed-by: Jon Jensen <jon@instructure.com>
QA-Review: Matt Fairbourn <mfairbourn@instructure.com>
Product-Review: Braden Anderson <banderson@instructure.com>