no refs
[Portal](https://github.com/TryGhost/Portal) is a new drop-in script to make the bulk of Ghost membership features work on any theme out of the box, which was under a developer flag so far. This release removes the flag for Portal and makes it included as default for any members-enabled Ghost site. The Portal script is backward compatible with old public members script and existing Members-enabled themes should notice no change.
- Removes Portal config flag as Portal is now enabled by default
- Removes old members script as Portal is backward compatible with it
- Changes `{{content}}` helper to show default CTA in case of restricted content access
- `accent_color` setting is no more behind the dev experiment flag and included by default
- Adds migration to switch off Portal button setting for all existing sites which don't have Portal enabled in beta
