Swift API Updates

This PR updates the OpenStack Swift API to the latest standards. Here is what is included:

- Prefer `getSomeApi()` for all APIs
- Removed deprecated 1.8 methods
- Updated deprecations to the `*ForRegionAndBlah` methods to 3.0
- Whitespace cleanup
- Annotation reordering
No, because this method was only on `master`. I decided to change it after the unified `Region` support.