Fix circular dependency issues

# Not yet ready to merge.

- [ ] Analytics
- [ ] AWSiOSSDK
- [ ] DTModelStorage
- [ ] DZNPhotoPickerController
- [ ] ErrorKit
- [ ] Fancy-iOS
- [ ] FastElegantDelegation
- [ ] GBAnalytics
- [ ] INSpriterKit
- [ ] iOS-FakeWeb
- [ ] KFData
- [ ] libwebp
- [ ] LumberjackConsole
- [ ] LWFKit
- [ ] MIHCrypto
- [ ] mopub-ios-sdk
- [ ] MyiOSViewHelpers
- [ ] MyMeteor
- [ ] NBUImagePicker
- [ ] NBUKit
- [ ] Objective-LevelDB
- [ ] OMGHTTPURLRQ
- [ ] Overcoat
- [ ] PromiseKit
- [ ] Rest2Mobile
- [ ] RZUtils
- [ ] SDWebImage
- [ ] ShareKit
- [x] SlackTextViewController
- [ ] SLRESTfulCoreData
- [ ] spatialite
- [ ] TAKKit
- [ ] teemov2
- [ ] Typhoon
- [ ] XMPPFramework

Part of https://github.com/CocoaPods/Molinillo/issues/6