Code review comment for lp://staging/~gary/juju-gui/enableInspectorCancel

Reviewers: mp+185593_code.launchpad.net,

Message:
Please take a look.

Description:
Hook up cancel buttons in the inspector

This branch simply hooks up the cancel buttons, which thanks to
groundwork from Ben that I worked on in previous branches, is a one
liner for each button.

For QA, on config and constraints page, make an edit, and then press
cancel. make an edit and trigger a conflict, and then press cancel.
Make an edit and trigger a conflict and then begin to choose options,
and then press cancel.

True confessions: I only tried out one of those in automated tests.
I'll try it out now myself. :-)

https://code.launchpad.net/~gary/juju-gui/enableInspectorCancel/+merge/185593

(do not edit description out of merge proposal)

Please review this at https://codereview.appspot.com/13677044/

Affected files (+211, -1 lines):
   A [revision details]
   M app/views/environment.js
   M app/views/inspector.js
   M test/test_inspector_constraints.js
   M test/test_inspector_settings.js