Implement basics for ServiceUnit token/view.
Update new flags to return to li and mv

- Move the deployer bar to the mv flag.
Minor code fixes, per Rick.
Merge pull request #247 from mitechie/update-feature-flags

- Move the deployer bar to the mv flag.
Fix env header buttons to function.

- Requires the il flag
- Fires correct event updates to show/hide the machine view UI
- Adds a test for the correct events.
- Update to make sure the header is drawn in the new state world.
- Update the CSS to move the machine view panel next to the sidebar.

QA
----

Load the GUI with :flags:/il/mv and click back/forth on the buttons in the
control for Service/Machine views.
Merge pull request #239 from kadams54/deployed-unit-tokens

Right now primarily a code review as this isn't wired into anything yet.
Merge pull request #249 from mitechie/machine-view-control

- Requires the il flag
- Fires correct event updates to show/hide the machine view UI
- Adds a test for the correct events.
- Update to make sure the header is drawn in the new state world.
- Update the CSS to move the machine view panel next to the sidebar.

QA
----

Load the GUI with :flags:/il/mv and click back/forth on the buttons in the
control for Service/Machine views.