[gi-docgen] Created tag 2021.6

[Emmanuele Bassi <ebassi src gnome org>]

The signed tag '2021.6' was created.

Tagger: Emmanuele Bassi <ebassi gnome org>
Date: 1622050417 +0100

    gi-docgen 2021.6
    
    Changes since last version:
    
     - Add more files to the source dist [Simon McVittie, !61]
     - Deal with loops caused by unqualified ancestor names [!62]
     - Bind the 's' key to the search entry [Marc-André Lureau, !63]
     - Fix issues found by Coverity [#78]
     - Use a stylable separator for headings [#81]
     - Do not use gtk-doc function matching [#80]
     - Expose the "optional" GIR attribute in templates [Matthias Clasen, !68]
     - Generate argument description for GError [#86]
     - Redesign the arguments and return value tables [#84, #90]
     - Handle missing 'dot' binary [#88]
     - Validate links and warn about unknown fragments [#89]
     - Improve the types hierarchy [#48]
     - Add `callback` link fragment

Changes since the last tag '2021.5':

Emmanuele Bassi (48):
      Post-release version bump to 2021.6
      Merge branch 'wip/smcv/more-in-sdist' into 'main'
      gir: Deal with unqualified ancestor names
      Merge branch 'ancestor-loops' into 'main'
      generate: Use FQTN for the hierarchy roots
      Merge branch 'key-focus' into 'main'
      index: Fix copy-paste thinko
      gir: Drop an unnecessary check
      Merge branch 'ebassi/issue-78' into 'main'
      template: Increase bottom margin on the sidebar logo
      template: Add missing extra files
      template: Fix the basic template description
      template: Use a stylable separator for the heading
      Merge branch 'title-separator' into 'main'
      Remove gtk-doc function matching
      Merge branch 'ebassi/issue-80' into 'main'
      Merge branch 'optional-args' into 'main'
      template: Update the method arguments table
      generate: Add period at the end of static strings
      template: Add period at the end of generated blurbs
      Generate GError argument description
      utils: Tweak the documentation style
      Restructure the arguments and return value sections
      template: Style generated text differently
      generate: Decouple transfer notes for methods
      Merge branch 'ebassi/argument-annotation' into 'main'
      config: Handle missing dot
      Merge branch 'issue-88' into 'main'
      Support generic type fragment for linking types
      docs: Fix thinko in the linking page
      template: Give more room to argument names
      template: Add missing callables from the arguments refactor
      Merge branch 'missing-args-refactor' into 'main'
      Merge branch 'issue-90' into 'main'
      Merge branch 'link-type' into 'main'
      Move class hierarchy generator to the GIR API
      Fix the types hierarchy generation
      Merge branch 'class-hierarchy' into 'main'
      Emit warning for invalid link fragments
      gir: Add missing constant types
      gir: Add base_type for ast.Callback
      gir: Store callbacks by name
      gir: Look for callback types
      utils: Parse "callback@" links
      Merge branch 'validate-links' into 'main'
      docs: Add the `callback` fragment to the list
      docs: Be more explicit on the role of the `type` fragment
      utils: Do not append a period unless we end with text

Marc-André Lureau (1):
      main.js: bind 's' key to focus on search input

Matthias Clasen (1):
      Make (optional) annotations work

Simon McVittie (1):
      build: Add meson_options.txt to setuptools sdist