[gtk] (7 commits) Non-fast-forward update to branch matthiasc/css-matching-2

[Matthias Clasen <matthiasc src gnome org>]

The branch 'matthiasc/css-matching-2' 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:

  257d638... css: Add getters for a matchers name and classes
  0605c83... css: Break the selector tree into many

Commits added to the branch:

  ce1f1f7... Update Polish translation (*)
  cec4c15... Refactor gtk_widget_pick (*)
  6e88ccf... pick: Take advantage of transform categories (*)
  be4d425... style cascade: Remove some pointless casts (*)
  7e2e92a... cssselector: Inline a few things (*)
  31b15bf... css: Add getters for a matchers name and classes
  6752145... css: Break the selector tree into many

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