Disable simulator.
Merge pull request #617 from makyo/disable-simulator

Disable simulator.

The simulator is no longer of much use to us in a development environment.  This disables it by default, though one can still turn it on using the hotkey or feature flag.
Cleanup of removed pyjuju tests.
Fade and highlight services on click.
Implement the three button states.
Merge pull request #616 from kadams54/services-hide-highlight

Wire fade/highlight buttons to the service and machine views.
Add a "no services" message.
Update service count in charmbrowser.
Lint cleanup.
Merge pull request #618 from kadams54/added-services-touchup

Added services touchup

Added the following touchups:

* "No services" message
* Added services nav button in the charmbrowser now updates its service count properly
Show a link to the MAAS server.

When the provider is MAAS, display a link
to the MAAS management interface in the
header.

Also implemented the EnvironmentGet call
in sandbox mode.
Merge pull request #620 from frankban/maas-server-link

Show a link to the MAAS server.

When the provider is MAAS, display a link
to the MAAS management interface in the
header.

Also implemented the EnvironmentGet call
in sandbox mode.