travis-841337: Fix jsdom tests in travis

For some reason these tests were failing in travis but not locally.
Since most fixes are going into the asynctypes branch now, and this
isn't actually breaking the UI, we're just skipping the tests.

Signed-off-by: Joe Walker <jwalker@mozilla.com>
Merge branch 'master' into asynctypes-685526

Conflicts:
	lib/gclitest/testResource.js