Bug fixes:
- Prepare 6.0.3 final. No changes compared to the release candidate.
[maurits] 603
- Add a last modification time of the resource registry.
We update this when changing anything related: when changing the resource registry in its control panel or activating an add-on.
This avoids needing a restart before seeing changes when you run in production mode.
Fixes [issue 3505](https://github.com/plone/Products.CMFPlone/issues/3505).
[maurits] 3505
- Removed path query from search view when context is site root.
[malthe] 3753
- Fixed encoding issue on Python 3 for some mail servers.
This could result in missing characters in an email body.
[maurits] 3754
- Mockup TinyMCE settings: Fix URLs in TinyMCE external_plugins settings.
Add the portal URL to external_plugins values for relative and absolute
URLs.
Before this fix external plugins could not be found if they were not added with
the full path or a full URL. The path is different for virtual hosted sites and
sites directly served from Zope. 3767
- Updated metadata version to 6015.
[maurits] 6015