Undefined concrete UIInterfaceOrientation symbol after upgrading

[Will Jessop]

Upgraded to the latest xcode (w/ the 8.3 SDK) and rubymotion 3.9, and I can't build my app:

```

Undefined symbols for architecture i386:

  "___concrete__UIInterfaceOrientationIsLandscape", referenced from:

      _MREP_CAC3FF5D0E5F4A60A4D4BE1E4FC9CDBE in ext.rb.o

  "___concrete__UIInterfaceOrientationIsPortrait", referenced from:

      _MREP_CAC3FF5D0E5F4A60A4D4BE1E4FC9CDBE in ext.rb.o

```

Rakefile:

```

app.device_family = [:iphone, :ipad]

app.sdk_version = "8.3"

app.deployment_target = "8.1"

```

I did rake clean and rake pods:install before building. Also upgraded to the newest cocoapods.

I think it's something to do with cocoapods?

```

.rvm/gems/ruby-2.1.2/gems/motion-cocoapods-1.7.0/lib/motion/project/cocoapods.rb:53:in `build_with_cocoapods'

```

from my gemfile:

```

Using cocoapods 0.36.3

Using motion-cocoapods 1.7.0

```

Any ideas?

(cross posted to http://community.rubymotion.com/t/undefined-concrete-uiinterfaceorientation-symbol-after-upgrading/358 as well)