[gtk] (7 commits) ...Merge branch 'wip/exalm/consumes-motion' into 'master'

[Matthias Clasen <matthiasc src gnome org>]

Summary of changes:

  870b82b... button: Stop claiming event sequence on press (*)
  bf2620f... checkbutton: Claim sequence on release instead of press (*)
  28f5d26... windowhandle: Don't drag on capture phase (*)
  bbca4c3... entry: Fix drag threshold check (*)
  f63e639... dragsource: Use double coordinates for checking drag thresh (*)
  11f3b77... windowhandle: Use drag threshold instead of double click th (*)
  bf4102e... Merge branch 'wip/exalm/consumes-motion' into 'master'

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