Mpl-image-labeller

Automatically adjust image extent to preserve the aspect ratio of the image

**Full Changelog**: https://github.com/ianhi/mpl-image-labeller/compare/0.1.1...0.2.0


**Fixes:**

`init_labels` is respected


**new features:**

1. `ax` is not accesible through the `.ax` attribute
2. `images` can now be a callable

Thanks to jrussell25 for suggesting these improvements

Fix the qwerty keymap - previously it would break 2