Revert "Add cocoapods, install AFNetworking"

This reverts commit eee1b1d0283fdd7f3e43cc6fef92f09c5e7af078.
Revert "Reorganize ios project"

This reverts commit dbf58bbc674b1f12332fa27c78de293934509c21.
Add cocoapods, install AFNetworking (take 2)