[gtk+] (10 commits) Created branch treeview-refactor-staging

[Tristan Van Berkom <tvb src gnome org>]

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

Summary of new commits:

  67b08d8... Removed all variables from GtkTreeViewColumn and created Gt
  e8304a2... Removed the private sharing of internal treeview macros fro
  fc606ae... Removed GtkTreeViewPrivate from gtktreeprivate.h and added 
  34c9b31... Changed _gtk_tree_view_column_set_width for _gtk_tree_view_
  10c576d... Use gtk_tree_view_get_real_requested_width_from_column() al
  6da5474... Created _gtk_tree_view_column_request_width().
  8e78704... Allocate proper inner cell area to the GtkTreeViewColumn.
  33c22b4... Changed GtkTreeView to bookkeep the deepest expanded depth 
  c74ccab... Fixed GtkTreeViewColumn allocation to only subtract the dep
  4a4845e... Added GtkTreeViewColumn:cell-area construct-only property.