[gtk] (29 commits) Non-fast-forward update to branch ebassi/new-a11y

[Emmanuele Bassi <ebassi src gnome org>]

The branch 'ebassi/new-a11y' 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:

  2addf69... Remove ATK
  4748968... a11y: Add the supported accessibility roles
  6f78813... Introduce GtkAccessible
  008905c... Add GtkAccessibleValue
  f08f6b6... Add GtkAccessibleStateSet
  d7fec1c... Add GtkATContext
  c07abec... Plug GtkATContext into GtkAccessible
  5274d0f... Have GtkWidget implement GtkAccessible
  6a16c53... Update the accessible state on widget visibility changes
  fb02000... Start documenting the Accessibility API
  3783289... Allow setting the accessible role at construction
  f8f6476... Plumb all the GtkAccessibleProperty values into GtkAccessib
  2b88f1f... Add GtkAccessiblePropertySet
  2837a47... Add accessible properties to GtkAccessible
  47a594a... a11y: Add roles to various widgets
  7773eba... a11y: Update the "pressed" state on toggle buttons
  9c3c6ca... a11y: Update the accessible state for GtkRange
  f35a561... a11y: Set the role for GtkScale
  f7f88b4... a11y: Update GtkSeparator
  2e0f05e... a11y: Update the accessible label for GtkButton
  8a995ab... a11y: Collect reference value
  d678766... a11y: Add binding-friendly accessible property setter
  ea79a46... Remove GTK_ACCESSIBLE_STATE_NONE
  7efbe32... a11y: Resync with the ARIA spec
  d4a503c... a11y: Simplify GtkAccessibleValue
  78f9e2e... a11y: Add relations API
  870ae0a... a11y: Consolidate the attributes container

Commits added to the branch:

  671435e... Fix typo in the GtkStrinFilter constructor declaration (*)
  f292498... Merge branch 'ebassi/for-master' into 'master' (*)
  804f803... Remove ATK
  bebed37... a11y: Add the supported accessibility roles
  c016adc... Introduce GtkAccessible
  3b8f99f... Add GtkAccessibleValue
  e7162de... Add GtkAccessibleStateSet
  309e0f8... Add GtkATContext
  451acd8... Plug GtkATContext into GtkAccessible
  64097ce... Have GtkWidget implement GtkAccessible
  6bfacc7... Update the accessible state on widget visibility changes
  7b50d97... Start documenting the Accessibility API
  486e436... Allow setting the accessible role at construction
  31cc344... Plumb all the GtkAccessibleProperty values into GtkAccessib
  5e2718a... Add GtkAccessiblePropertySet
  024123c... Add accessible properties to GtkAccessible
  fe589dd... a11y: Add roles to various widgets
  53812d0... a11y: Update the "pressed" state on toggle buttons
  882e5e1... a11y: Update the accessible state for GtkRange
  ba09a6e... a11y: Set the role for GtkScale
  bcdf9b3... a11y: Update GtkSeparator
  f949731... a11y: Update the accessible label for GtkButton
  228299f... a11y: Collect reference value
  5d96613... a11y: Add binding-friendly accessible property setter
  fd200c8... Remove GTK_ACCESSIBLE_STATE_NONE
  4bca803... a11y: Resync with the ARIA spec
  68ca009... a11y: Simplify GtkAccessibleValue
  d0723f0... a11y: Add relations API
  334aa6a... a11y: Consolidate the attributes container

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