Idiomacy pass

@andymoe, this pass was to convert ivar usage over to properties.

Please review, and also point only any places I might have missed.
Actually, I never made this fix i the debug view controller.  I just did it
in the ArDroneViewController.  In reality most of the buttons I put in can
be pulled back out. The only one I really need is the one that launches the
test gui. I can put that on my todo list.

-dave

On Thu, Nov 6, 2014 at 8:28 PM, Andy Brown <notifications@github.com> wrote:

> In iGCS/UserInterface/ViewControllers/DebugViewController.m:
>
> > @@ -123,19 +126,19 @@ - (IBAction)videoDisplayLocationValueChanged:(id)sender {
> >  }
> >
> >  - (IBAction)ftpClicked:(id)sender {
> > -    _arDrone2 = [[ArDroneUtils alloc] init];
> > -    [_arDrone2 uploadProgramToDrone];
> > +    self.arDrone2 = [[ArDroneUtils alloc] init];
>
> @cnatoli <https://github.com/cnatoli> can you roll back the AR.Drone
> changes in the IBAction methods in this file. I *think* dave has an
> active branch and has addressed this stuff already or it may even be in
> master by now. I think these changes will just cause conflicts to work out.
>
> —
> Reply to this email directly or view it on GitHub
> <https://github.com/fightingwalrus/iGCS/pull/111/files#r19994125>.
>