update ic-ajax

Change-Id: I21e0181db69fd846bbbdc38bfaa5b74c56ee2699
Reviewed-on: https://gerrit.instructure.com/36277
Tested-by: Jenkins <jenkins@instructure.com>
Reviewed-by: Jason Madsen <jmadsen@instructure.com>
Product-Review: Ryan Florence <ryanf@instructure.com>
QA-Review: Ryan Florence <ryanf@instructure.com>