initial commit
add window
add document
add view
add clutter
add children to layer
restructing object hierarchy
shutdown on close window
document work
add root to document.
incremental canvas work
set background to white and show widget
center window
start on pixbuf item for canvas.
assign document to item
wire some stuff up.
add hacking
new idea
more work on smaller prototype
wire up canvas with pixbuf item implementation