v1.1.0 - Improvements to is_slug() and is_cuid()

1.1.0 - 2021-08-03

Fixed

• 0-length strings now return false when being checked by is_cuid() rather
  than panicking (a4fca2f, reported by @DeppLearning)

Changed

• Improved specificity of is_cuid() and is_slug() checks (a4fca2f)
• Use references for is_cuid() and is_slug() rather than converting to
  strings (a4fca2f)