[baobab] (53 commits) ...Start implementing new design

[Stefano Facchini <sfacchini src gnome org>]

Summary of changes:

  03a40a6... Revert "chart: Fix directory size shown in tooltip" (*)
  586355b... Begin rewrite in Vala (*)
  47b0f12... scanner: accumulate sizes and calculate percent (*)
  c038b50... wire up the chart properly (*)
  41cc3f0... scanner: calculate percents as we go (*)
  0b7815a... reimplement the progress bar cell renderer (*)
  6ae95b1... scanner: split interface from implementation (*)
  d236b74... Introduce threaded scanner (*)
  ed4309d... sort the model by size by default (*)
  684ad22... expand first row when it is added (*)
  814aad4... main window ui: tweak some margins and sizes (*)
  5c0dfdf... main window ui: reorder children in file (*)
  284ddde... main window ui: use default toolbar style (*)
  0bd2b24... wire up the toolbar buttons (*)
  c9c5e0f... Implement Drag and Drop. (*)
  4c5f9b7... Use on_signal_name convention for the handlers (*)
  a6fee9f... Implement two trivial handlers (*)
  9e5fb2b... Implement file chooser dir selection (*)
  143556c... Make the directory a property of the scanner. (*)
  063f39d... First cut at stop and refresh. (*)
  f55e9a9... Start to implement set_busy. (*)
  9341f91... rework code for excluded locations (*)
  ada5fcd... Make use of new GHashTable API (*)
  dbcbe27... Use the STANDARD_ALLOCATED_SIZE file attribute. (*)
  861ed96... Adjust to gio vapi changes (*)
  cd79a8f... Pass the directory in the scanner constructor. (*)
  bbdf786... Add a "completed" signal to the scanner (*)
  915b9b8... First cut at menus (*)
  35eaedb... First cut at action sensitivity. (*)
  9f71ff7... More work on the App menu (*)
  6df210e... Let's give up and special case menus. (*)
  59e554a... Kill the statusbar (*)
  f377bfc... menus: Update to new menu XML format (*)
  b967977... Use radio buttons for chart selection (*)
  405b3b1... First cut at treeview context menu (*)
  65fcad2... Bubble up scanner errors. (*)
  63a011f... Sync the chart root to the treeview selection. (*)
  72f60d1... Sync the treeview selection when chart item is activated (*)
  a9d1ce3... Show a spinner while scanning. (*)
  c3d785e... Start to implement "Scan remote dir" (*)
  cee5ae0... Use Radio buttons for the chart selection (*)
  a5a7635... Use a GtkInfoBar to display errors. (*)
  4a33593... Handle scanning error without aborting the scan (*)
  1a0e1f6... Use GResource (*)
  9481d8e... Use symbolic icons for the chart selection (*)
  db5e73d... First cut at implementing initial state. (*)
  2746a22... window: stop Spinner when not busy (*)
  6edb075... scanners: Correctly compute allocated size (*)
  20e6244... window, charts: Display allocated size (*)
  fe6b9a9... Add facilities for volume handling
  dbb36d4... Implement a custom widget for showing a volume
  add0d92... Add an (optional) scanning flag parameter to exclude mount 
  f53e468... Start implementing new design

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