Start showing images in the keyboard view.
Finish fixing Podfile acknowledgements munging and copying.
Animate those smilies.

The checked-out copy of FLAnimatedImage is manually edited to fix a few things:

* FLAnimatedImage's reference to UIImage without importing UIKit. (PR sent.)
* FLAnimatedImageView's busted intrinsicContentSize. (PR sent.)
* Excessive, pointless logging: when presented with a single-frame GIF; and when enforcing a minimum delay time between frames.
Fix unit test code signing errors (?) when building app target.

I'm not sure why the SmileyTests bundle needs code signing when we're just building the app target.
Copy tapped images from keyboard extension.