Ran this through `./ios/docs/install_docs.sh` to double-check things.
* Less-specific initializers above more-specific per Apple convention.
* Shores up `accessToken` docs as property, not a method.
* Edited comments for consistency and/or to keep them out of the docs.
Declared these IB-specific inspectables in a separate category that developers are not expected to import. Currently these inspectables are order-dependent due to #1181.
Ref #929
