[gtk] (37 commits) Non-fast-forward update to branch wip/baedert/resize2

[Timm Bäder <baedert src gnome org>]

The branch 'wip/baedert/resize2' was changed in a way that was not a fast-forward update.
NOTE: This may cause problems for people pulling from the branch. For more information,
please see:

 https://wiki.gnome.org/Git/Help/NonFastForward

Commits removed from the branch:

  5d34a9c... root: Remove unused include
  377a775... frameclockidle: Remove layout loop
  5ab2e74... Add a list of resize widgets to GtkRoot

Commits added to the branch:

  0cf5b66... Add private accessor for GdkKeyEvent.translated (*)
  d68e312... Use the private GdkKeyEvent.translated_key getter (*)
  7de9eb0... Add a comment for translators (*)
  5317e4b... constraint-editor: Don't use g_type_ensure (*)
  9fa3742... Make GtkOverlayLayout public (*)
  e4623fd... Add GtkOverlayLayout to the docs (*)
  10cd539... wip: Include markdown content, via pandoc (*)
  3338d24... docs: Be more careful when expanding abbreviations (*)
  9873d98... docs: Convert css overview to markdown (*)
  3bf90b4... doc: Check for pandoc (*)
  b99511e... docs: Convert building, compiling, running to markdown (*)
  bf14d75... docs: Refresh the inspector screenshot (*)
  2595cd5... docs: Convert getting_started to markdown (*)
  29fb9ae... docs: Convert platform sections to markdown (*)
  f44d611... docs: Drop a long-stale file (*)
  5a3fe9e... docs: Convert resources section to markdown (*)
  a37b9d7... docs: Drop the glossary (*)
  581b39a... docs: Allow influencing pandoc divisons (*)
  dc858c9... docs: Convert treeview and textview overview to markdown (*)
  84437ee... docs: Allow interrupted lists (*)
  aca8090... docs: Convert question index to markdown (*)
  f60149c... ci: Add a fedora-docs image (*)
  86f8be4... ci: Use fedora-docs for the doc build (*)
  4dbf73d... Merge branch 'matthiasc/for-master' into 'master' (*)
  ae2e548... docs: Use the right python (*)
  5590e2f... Merge branch 'doc-chapters-markdown' into 'master' (*)
  17b5cfc... docs: Mention pandoc as build dependency (*)
  92d42d4... printing: Drop a redundant assignment (*)
  0f096d6... bitmask: add an assertion (*)
  ec39dde... Help static analysis with an assertion (*)
  a55d179... accelgroup: Drop some unused code (*)
  8c6bbcd... docs: Mention shortcuts in the migration guide (*)
  ddf6138... Merge branch 'ebassi/for-master' into 'master' (*)
  bd3f459... Merge branch 'matthiasc/for-master' into 'master' (*)
  1dae398... root: Remove unused include
  c4c84f5... frameclockidle: Remove layout loop
  772931f... Add a list of resize widgets to GtkRoot

(*) This commit already existed in another branch; no separate mail sent