Most tests bypass setting the token via the UI, instead choosing
to set it in localStorage directly, because the acceptance tests
for the token UI are sufficient to exercise that part of the UI,
so this speeds up the test a bit.
This connects Xterm.js to a Nomad exec websocket so people
can interact on clients via live sessions. There are buttons on
job, allocation, task group, and task detail pages that open a
popup that lets them edit their shell command and start a
session.
More is to come, as recorded in issues.
