Goocanvas 0.9.0 API Breakage

["John Stowers" <john stowers gmail com>]

The attached patch makes conduit work against (py)goocanvas 0.9.0

Im not sure about committing it yet but it may be useful for packagers

John
Index: conduit/Canvas.py
===================================================================
--- conduit/Canvas.py	(revision 794)
+++ conduit/Canvas.py	(working copy)
@@ -147,8 +147,14 @@
         return items
 
     def _canvas_resized(self, widget, allocation):
+
+        w = max(allocation.width,Canvas.CANVAS_WIDTH)
+        h = max(allocation.height,Canvas.CANVAS_HEIGHT)
+
+        self.set_bounds(0,0,w,h)
+
         for i in self._get_child_conduit_items():
-            i.set_width(allocation.width)
+            i.set_width(w)
 
     def _on_conduit_button_press(self, view, target, event):
         """
@@ -486,33 +492,27 @@
         self.model = model
 
     def get_height(self):
-        b = goocanvas.Bounds()
-        self.get_bounds(b)
+        b = self.get_bounds()
         return b.y2-b.y1
 
     def get_width(self):
-        b = goocanvas.Bounds()
-        self.get_bounds(b)
+        b = self.get_bounds()
         return b.x2-b.x1
 
     def get_top(self):
-        b = goocanvas.Bounds()
-        self.get_bounds(b)
+        b = self.get_bounds()
         return b.y1
 
     def get_bottom(self):
-        b = goocanvas.Bounds()
-        self.get_bounds(b)
+        b = self.get_bounds()
         return b.y2
 
     def get_left(self):
-        b = goocanvas.Bounds()
-        self.get_bounds(b)
+        b = self.get_bounds()
         return b.x1
 
     def get_right(self):
-        b = goocanvas.Bounds()
-        self.get_bounds(b)
+        b = self.get_bounds()
         return b.x2
 
 class DataProviderCanvasItem(_CanvasItem):