[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:

  4d80133... Removed all variables from GtkTreeViewColumn and created Gt
  33f3451... Removed the private sharing of internal treeview macros fro
  f960b9d... Removed GtkTreeViewPrivate from gtktreeprivate.h and added 
  0a52f05... Changed _gtk_tree_view_column_set_width for _gtk_tree_view_
  5507745... Use gtk_tree_view_get_real_requested_width_from_column() al
  69d0c57... Created _gtk_tree_view_column_request_width().
  9f9f183... Allocate proper inner cell area to the GtkTreeViewColumn.
  41f0f80... Changed GtkTreeView to bookkeep the deepest expanded depth 
  3009293... Fixed GtkTreeViewColumn allocation to only subtract the dep
  6fdb42c... Added GtkTreeViewColumn:cell-area construct-only property.