v2.3.0 Release

This reverts #327, #324, & #329, mainly to go back to an iOS min version of 9.0 and thus not break semver contract for the 2.x releases.

What's Changed

• Fix up 2.2 release and prep a 2.3 release by @thomasvl in #334

Full Changelog: v2.2.0...v2.3.0