BREAKING CHANGE: To allow for the `name` property, any widgets that were previously targeted by name should be targeted by class instead. This affects **all modules and all popups**, as well as several widgets inside modules. **This will break a lot of rules in your stylesheet**. To attempt to mitigate the damage, a migration script can be found [here](https://raw.githubusercontent.com/JakeStanger/ironbar/master/scripts/migrate-styles.sh) that should get you most of the way.
Resolves#75.
Adds `on_click_middle`, `on_click_right`, `on_scroll_up`, `on_scroll_down`.
BREAKING CHANGE: `on_click` is now called `on_click_left` for consistency with new options.
Resolves#44.
