Hide help text when opened from canvas.

We only want to display the help text in the inspector when a service is initially deployed. Or, put differently: we want to hide the text when a user is clicking on an existing service in the canvas.
Good question. I think it depends on what we want the UX behavior to be. My understanding was that we wanted to divorce the help text entirely from committed/uncommitted state and just have it triggered by whether the inspector was opened by a newly-created (and potentially committed) service or by clicking on an existing service. See step #4 in the QA steps above: "The help text should remain [even when deployed] until either dismissed or the inspector is closed."

If we do decide that state is important and we should only show the text for uncommitted AND newly created, I'm not sure this is the right place for that type of logic. All this chunk of code should do is pull down the value from the containing view and make it available to the viewlet. The decision about whether to set the flag for pending service seems like it should happen in `app/views/topology/service.js` and the `showServiceDetails` function, around line 1469.