Code review comment for lp:~mterry/update-manager/update-at-start

When I run ./update-manager from your branch I get the following errors on the console:

% ./update-manager
Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/gi/overrides/Gtk.py", line 354, in _full_callback
    raise AttributeError('Handler %s not found' % handler_name)
AttributeError: Handler on_button_reload_clicked not found
Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/gi/overrides/Gtk.py", line 354, in _full_callback
    raise AttributeError('Handler %s not found' % handler_name)
AttributeError: Handler on_checkbutton_reminder_toggled not found

Probably some additional left over cruft that isn't removed in your branch?

Also, you mention a spec, but I'm not aware of it. Do you have a link?

Minor misspelling at the top of UpdateProgress.py

You might want to run pyflakes over UpdateProgress.py. Unused imports include Gtk, _, ngettext
Also, you can probably collapse the .Core.utils import onto one line
Spaces around the = sign when setting os.environ[]
4 space indents please! :)

Could you add some tests for the new functionality and files?