Reworked settings_object module, but command.init tests still fail:

Reworked settings_object module, but command.init tests still fail:

$ python test.py libbe.command.init
Doctest: libbe.command.init.Init ... FAIL
...
-----------------------
File ".../libbe/command/init.py", line 47, in libbe.command.init.Init
Failed example:
    ui.run(cmd)
Exception raised:
    Traceback (most recent call last):
      ...
      File "/tmp/be.wtk/libbe/command/init.py", line 97, in _run
        bd = libbe.bugdir.BugDir(storage, from_storage=False)
      File "/tmp/be.wtk/libbe/bugdir.py", line 185, in __init__
        self.save()
      File "/tmp/be.wtk/libbe/bugdir.py", line 228, in save
        self.save_settings()
      File "/tmp/be.wtk/libbe/bugdir.py", line 204, in save_settings
        mf = mapfile.generate(self._get_saved_settings())
      File "/tmp/be.wtk/libbe/storage/util/settings_object.py", line 230, in _get_saved_settings
        self, self._setting_name_to_attr_name(k))
      File "/tmp/be.wtk/libbe/storage/util/properties.py", line 194, in _fget
        value = fget(self)
      File "/tmp/be.wtk/libbe/storage/util/properties.py", line 329, in _fget
        primer(self)
      File "/tmp/be.wtk/libbe/storage/util/settings_object.py", line 69, in prop_load_settings
        self.load_settings()
      File "/tmp/be.wtk/libbe/bugdir.py", line 194, in load_settings
        self.settings = mapfile.parse(settings_mapfile)
      File "/tmp/be.wtk/libbe/storage/util/mapfile.py", line 123, in parse
        c = yaml.load(contents)
      ...
      File "/usr/lib/python2.6/site-packages/yaml/reader.py", line 213, in update_raw
        data = self.stream.read(size)
    AttributeError: 'NoneType' object has no attribute 'read'
...