Remove Podfile.lock from tests

Having to pod install to update the lock is annoying and since we are
running tests. It's not critical what version we are using of the other
libraries. Let's stay up-to date!
We don't need to perform and wait in a didChange notification

This was only meant for will change, as its critical we do the stuff
*before* and not after. This could cause a deadlock easily
Pass though error in add persistent store helpers
-standardLocalDataStore should infer it's mapping model
Include a mising import in UI to the data store