Updates project files with newer version of Cocoapods.

These project files were updated by
1. pod install in Project/Tests/ReplicationAcceptance
2. Changing the Deployment Target to 10.10 and then back to
     original setting

The Tests/Podfile was updated as instructed by the cocoapods
command-line tool.
Merge pull request #83 from cloudant/fix-projects-with-latest-cocoapods

Updates project files as modified by newer version of Cocoapods.