Fix Deprecations, Warnings, and Naming Issues for Xcode Build

[Crebs]

This PR resolves deprecations, warnings, and naming issues.

[salesforce-cla]

Thanks for the contribution! Unfortunately we can't verify the commit author(s): Riley <r***@s***.com>. One possible solution is to add that email to your GitHub account. Alternatively you can change your commits to another email and force push the change. After getting your commits associated with your GitHub account, refresh the status of this Pull Request.

[bbirman]

nice! if you haven't already, can you run the MobileSyncExplorer app to test out rotation and the changes to the KV and SmartStore inspectors? You can get to the inspector views by opening the dev menu, doc with more info: https://developer.salesforce.com/docs/platform/mobile-sdk/guide/tools-dev-support.html?q=dev%20info