Typo in backend_qt4.py (matplotlib-1.1.0-rc1-py2.7-python.org-macosx10.3.dmg)?

Hi,

just received

Traceback (most recent call last):
  File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/matplotlib/backends/backend_qt4.py", line 449, in edit_parameters
    fmt = "%(axes_repr)s (%(ylabel)s)" % ylabel
TypeError: format requires a mapping

should this postfix "% label" in line 449 be removed?

Cheers and thanks for the great work,
M.

PS: Why is there no subplots.svg (only icon in NavigationToolbar with only a .png version)

PPS: Another one caused by clicking the green flag icon ("Edit curves and ..") in NavigationToolbar

NotImplementedError: TransformNode instances can not be copied. Consider using frozen() instead.
Traceback (most recent call last):
  File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/matplotlib/backends/backend_qt4.py", line 463, in edit_parameters
    figureoptions.figure_edit(axes, self)
  File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/matplotlib/backends/qt4_editor/figureoptions.py", line 132, in figure_edit
    icon=get_icon('qt4_editor_options.svg'), apply=apply_callback)
  File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/matplotlib/backends/qt4_editor/formlayout.py", line 511, in fedit
    dialog = FormDialog(data, title, comment, icon, parent, apply)
  File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/matplotlib/backends/qt4_editor/formlayout.py", line 416, in __init__
    parent=self)
  File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/matplotlib/backends/qt4_editor/formlayout.py", line 390, in __init__
    widget = FormComboWidget(data, comment=comment, parent=self)
  File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/matplotlib/backends/qt4_editor/formlayout.py", line 368, in __init__
    widget = FormWidget(data, comment=comment, parent=self)
  File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/matplotlib/backends/qt4_editor/formlayout.py", line 233, in __init__
    self.data = deepcopy(data)
  File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/copy.py", line 163, in deepcopy
    y = copier(x, memo)
  File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/copy.py", line 230, in _deepcopy_list
    y.append(deepcopy(a, memo))
  File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/copy.py", line 163, in deepcopy
    y = copier(x, memo)
  File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/copy.py", line 237, in _deepcopy_tuple
    y.append(deepcopy(a, memo))
  File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/copy.py", line 163, in deepcopy
    y = copier(x, memo)
  File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/copy.py", line 230, in _deepcopy_list
    y.append(deepcopy(a, memo))
  File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/copy.py", line 163, in deepcopy
    y = copier(x, memo)
  File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/copy.py", line 298, in _deepcopy_inst
    state = deepcopy(state, memo)
  File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/copy.py", line 163, in deepcopy
    y = copier(x, memo)
  File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/copy.py", line 257, in _deepcopy_dict
    y[deepcopy(key, memo)] = deepcopy(value, memo)
  File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/copy.py", line 174, in deepcopy
    y = copier(memo)
  File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/matplotlib/transforms.py", line 96, in __copy__
    "Consider using frozen() instead.")
NotImplementedError: TransformNode instances can not be copied. Consider using frozen() instead.