Breaking Changes - `ColourNotInRangeException` was renamed to `ColorNotInRangeException`
Fixes - fix async file attachments
0.16.3
Fixes - only check if color is in range if color was set
0.16.2
Fixes - fix support for using a list of webhook URLs
0.16.1
Fixes - fix hex to int color conversion
0.16.0
Features - add async support
0.15.0
Features - enable `rate_limit_retry` in webhook `edit()` function - add optional kwargs to `edit` function to specify fields that will be added or override existing fields in the webhook edit request. e.g. attachments