important fix to iPhone6 support (for cocoapods library usage)

[robertibiris]

on the previous pul request, the files changed were the ones used in the Demo project. However, these are not the ones tracked in the podspec file, so I updated the ones tracked by the podspec file in order for the library to match the changed reflected in the demo.

As a suggestion, it might be better to set the files used by the Demo as the same ones used for Cocoapods (at the moment they's just copies of each other basically). In this way we can avoid confusion in future pull requests.

cheers =)