[gtk+/treeview-refactor-staging] (78 commits) ...Add an editable cell to testverticalcells showing functional vertical focus navigation.

[Tristan Van Berkom <tvb src gnome org>]

Summary of changes:

  e0efd06... Avoid memory corruption in the color_properties hashtable. (*)
  86c8ce1... Updated Hebrew translation (*)
  137f16c... Do not bother starting a draw call if bar_size <= 0 (*)
  43de55d... Turn TREE_VIEW_HEADER_HEIGHT into an inline function (*)
  ebba08a... Remove unused TREE_VIEW_COLUMN_REQUESTED_WIDTH macro (*)
  73f99ed... Turn TREE_VIEW_DRAW_EXPANDERS into an inline function (*)
  4701aeb... Updated Galician translations (*)
  1317830... Use structure bitfield instead of GtkTreeViewFlags (*)
  0a1982a... Move _gtk_tree_view_column_cell_focus to gtktreeview.c (*)
  77d972e... Remove private accessor for focus column (*)
  64ddd3f... Clarify start_pos parameter gtk_tree_view_column_cell_get_p (*)
  6c73647... Remove the need for _gtk_tree_view_column_get_focus_area (*)
  924359c... Clean up _gtk_tree_view_column_cell_event (*)
  7fe950a... Clean up and clarify row height calculations (*)
  2a65501... Replace FIRST_PIXEL macros with something that's more clear (*)
  d5df33c... Fix abi check after recent merges (*)
  d28cbd6... Bring back _gtk_tree_view_column_get_cell_at_pos (*)
  059aa89... Updated Spanish translation (*)
  5361490... Bug 636511 - New style override functions do not work on t (*)
  4cca755... GtkStyleContext: warn on meaningless coords in gtk_render_* (*)
  561346b... Remove unused function modify_color_property (*)
  4a7e746... Use the new style context API in GtkLabel. (*)
  b36cb87... Use the new style context API in GtkButton (*)
  84fd9b1... gdk: Remove nonexisting function from internal header (*)
  645d0ac... API: gdk: Remove depth argument from gdk_window_get_geometr (*)
  d55073f... gdk: Remove depth argument from GdkWindowImpl->get_geometry (*)
  e4c9d1a... gdk: Constify argument to gdk_rgba_copy() (*)
  6d6ee9a... style: Remove unused code (*)
  d378470... appchooser: Remove bogus function declaration (*)
  4b065f5... Changed gtk_cell_area_forall to gtk_cell_area_foreach since (*)
  2588165... Added gtk_cell_area_foreach_alloc() to further simplify Gtk (*)
  94c9eb7... Don't use g_warning when loading an engine fails (*)
  f1fafca... Make invalid stylesheets fail to parse again (*)
  c657226... Fixed gtk-doc statement in GtkCellArea header (*)
  9366a34... Fix GtkCellAreaBox allocate_cells_manually to handle unders (*)
  a090d62... Added expand controls to testtreeedit (now you can play wit (*)
  bf1aa2a... Changed GtkTreeViewColumn->requested_width to ->padding (*)
  0d0ec85... Fixed GtkTreeViewColumn to reset the context when _gtk_tree (*)
  f08f1f9... Fixed some nit-picking bugs in GtkCellArea (*)
  55bbe4a... Adding gtk_tree_view_column_new_with_area(). (*)
  3b753aa... Fix Makefile syntax (*)
  fd6e576... Port Quartz backend to latest rendering-cleanup changes (*)
  5f75ffc... Add gtk_widget_path_get_type to the headers (*)
  d23fb64... Fix a typo to fix the build. (*)
  48dba32... Disable theme engines for now (*)
  96139cb... Update NEWS for 2.91.6 (*)
  66f0f55... configure: Drop AC_PREREQ back down to 2.62 (*)
  65e3c09... introspection: Fix (out) for gdk_screen_get_monitor_geometr (*)
  48e92c6... Updated Norwegian bokmål translation (*)
  8f8aeb7... gdk: Remove GdkWindowObject typedef (*)
  fc71143... gtk: Remove old DirectFB code for drawing window decoration (*)
  9b042e3... gdk: Add section docs for GdkRGBA (*)
  ad80cb6... Allow + in identifiers (*)
  f2ab9e4... Prepare the stylecontext test to run out-of-srcdir (*)
  fe008de... Fix POTFILES for recent changes (*)
  26f6b48... Update for the removal of gtk_decorated_window_ apis (*)
  fae1e74... More !srcdir fixes for the stylecontext test (*)
  509e042... Bump version (*)
  97e060b... Fixed my mistake in validate_row (), now the height of tree (*)
  515af9c... Temporary fix to make separator rows request enough space f (*)
  1b33698... Revert "Temporary fix to make separator rows request enough (*)
  5fef00d... Adding gtk_tree_view_column_new_with_area to gtk.symbols an (*)
  6f67f52... app-chooser-widget: plug a memory leak (*)
  503be10... label: plug a memory leak (*)
  fc5cabb... Added minimum size parameter to GtkWidgetClass->adjust_size (*)
  5ac194c... Some doc additions (*)
  38321ea... GtkStyleContext migration guide tweaks (*)
  13209a9... More annotations for GdkDisplay (*)
  a47a557... Merge branch 'master' into treeview-refactor (*)
  34f4b5c... Added 'background_area' calculation to GtkCellAreaClass->fo (*)
  40e9f91... Fixed foreach_alloc call from gtk_cell_area_real_render to  (*)
  f1c26df... Fixed gtk-docs typo in gtkcellarea.c (*)
  32d9396... Changed misleading variable name in gtk_cell_area_real_acti (*)
  95ca1e2... Removed calculation of background area when about to edit a (*)
  cf8518d... Removing gtk_tree_view_move_focus_column() and only calling
  ac3a436... Modified gtk_tree_view_move_cursor_up_down to move focus in
  be8e0e1... Make GtkCellAreaBox remember what was the last focus cell s
  c3899ed... Add an editable cell to testverticalcells showing functiona

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