Install cocoapods, add dependencies as pods.
Removed manually managed dependencies
Add ability to animate return of photo even after index has changed in browser
Update example project to demonstrate return animation
Fix bug in example project when returning second thumbnail
Merge branch 'use-cocoapods-for-demo-project'

* use-cocoapods-for-demo-project:
  Removed manually managed dependencies
  Install cocoapods, add dependencies as pods.
Merge branch 'add-ability-to-return-animate-different-thumbnail'

* add-ability-to-return-animate-different-thumbnail:
  Fix bug in example project when returning second thumbnail
  Update example project to demonstrate return animation
  Add ability to animate return of photo even after index has changed in browser