Do not crash on unresolved resources in `CoreDataManager`.

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Use CP 0.34
Updated static framework build.
Remove some old cruft.
Use module import statements across the board.
Updated to CP 0.34 rc2
Make switch statements more explicit.
Get rid of implicit type conversions.
Make storage qualifiers explicit.
Move extern declaration of CDAErrorDomain to the actual header.
Updated schemes for Xcode 6.
Delete unused schemes.
Fix UIKit tests for iOS 8.
Introduce stricter warning flags.
Updated CCLRequestReplay and FBSnapshotTestCase pods.
Script to quickly adjust headers for MRC projects.

This avoids a bunch of warnings with manual reference counting projects.
Should be run in the Headers directory of a static framework build.
Added missing import.
Use cocoapods-coverage instead of homegrown stuff.
Add support for ordered CoreData relationships.

Fixes #14
Added cp-packager to .travis.yml