Added a base for the machine view include a reusable header widget.
 Fix default constraint values when scaling units.
Merge pull request #212 from frankban/scale-up-constrains

Also fix the memory unit used (s/GB/MB).

QA:
- make devel;

- deploy a service, do not change constraints;
- scale up the service: you should see the constraints
  message indicating the default constraints will be used;

- refresh and deploy another service customizing constraints;
- scale up the service: you should see the message indicating
  constraints are set for this service, including CPU power and
  number of cores.
Merge pull request #211 from huwshimi/machine-view-panel

Added a base for the machine view including a reusable header widget.

Test using the 'mv' flag.

We haven't made a decision about how to render the view yet so including it as a view extension in app.js. Also, it is always visible, it has not yet been hooked up to the environment header tabs.