1. Create a new branch sxc13 first!
  2. Increase second version number
    1. Save the app state
  3. Move all access of Services to ToSic.Sxc.Services - if used, add @using... to head for consistency
    1. IPageService
    2. IRenderService
    3. IFeaturesService - should now use name instead of GUID (see docs)
  4. When activating an js/css (atm using Edit.Enable(...)) - switch to using the PageService.Activate 
  5.  Queries
    1. Edit all queries and enable show-details, + re-arrange that everything is visible (+ save)
    2. See if we have any complex Relationship-Filters, which would be better if we used Parents/Children instead
  6. RazorBlade
    1. See where we could use IScrub instead (like whenever we had Tags.Strip or other cases)
    2. Possibly even use it to remove the need for intro-texts like in blogs/news?
    3. Check where we could use Text.Before/After to improve stuff
  7. Settings
    1. Where View-Settings are used, better use CmsContext.View.Settings
  8. Probably update all custom toolbars to use new API for Metadata
  9. Change all images to use latest Picture-tag technology
    1. all picture tags should use the .Field("") notation to get the data
    2. Use "Content" and "Lightbox" for the settings instead of Settings.Images.Content
  10. Where useful activate the new image crop feature
  11. CSP: whitelist external <script> tags with (pageSvc.AssetAttributes) 
    1. Remove data-enableoptimizations
  12. Mention all changes in readme.md