[gtk+] (13 commits) Created branch treeview-refactor-staging

[Tristan Van Berkom <tvb src gnome org>]

The branch 'treeview-refactor-staging' was created.

Summary of new commits:

  f7b9537... Removed all variables from GtkTreeViewColumn and created Gt
  60b06cc... Removed the private sharing of internal treeview macros fro
  edc3576... Removed GtkTreeViewPrivate from gtktreeprivate.h and added 
  d501d53... Changed _gtk_tree_view_column_set_width for _gtk_tree_view_
  1fcbd05... Use gtk_tree_view_get_real_requested_width_from_column() al
  ac78486... Created _gtk_tree_view_column_request_width().
  9be00ec... Allocate proper inner cell area to the GtkTreeViewColumn.
  0c60404... Changed GtkTreeView to bookkeep the deepest expanded depth 
  ef5f87d... Fixed GtkTreeViewColumn allocation to only subtract the dep
  460de3b... Added GtkTreeViewColumn:cell-area construct-only property.
  a4d91a8... Removing hack and fixing gtk_tree_view_column_cell_get_size
  57405d0... Adding testverticalcells.c.
  1ad72ff... Fixed conflicts from rebasing GtkTreeViewColumn changes fro