Opportunities

[quozl]

A quick review of the source code and testing shows a few opportunities;

• provide a test data set, without which the activity can do nothing,
• since the activity was written, the journal has grown the ability to read files from SD cards, and this supplants much of the usefulness of the activity, so a complete redesign is warranted,
• simplify by removing mybutton.py; originally intended to hide the Keep button, but the Keep button was removed from Sugar long ago, so there's no reason for this code now,
• fix PyGObject version warnings for Gdk,
• remove the old toolbar support,
• fix flake8 warnings (total of 124),
• fix log tracebacks, an AttributeError,