This should take care of most of the class property conversions to
use the new annotation format (colon instead of equals) for
assignment in 2.80. There may still be a few edge cases that
were missed.
Bumped version to 0.1.3
Pep 8 cleanup
Refactor menu code
Remove unused menu property
Use a BaseCheckPoll class for inheritance
Better support for comments:
- support inline comments
- trim the menu entries length to 60 characters
- skip the GPL block from the entries parsing
Some small UI changes