travis-841337: Use travis continuous integration

Fix 2 test failures due to jsdom not playing ball, and add travis-ci
integration files.

Signed-off-by: Joe Walker <jwalker@mozilla.com>
travis-841337: Don't test on Node 0.6

Even requirejs has abandoned 0.6 (r.js:2266) so should we.

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

Conflicts:
	lib/gclitest/helpers.js