Changelog

Features

• commit: empty message in editor aborts commit
  260a5d2
• changelog: add skip empty flag
  c3f4972, closes #30
• check: add max-number option
  a781286, closes #18

Fixes

• commit: do not require save for editor
  5945dca
• commit: ensure leading and trailing whitespaces are removed from different fields that
  make up a commit message
  4c6734f, closes #25
• changelog: limit lines in changelog to default of 80 characters to address markdownlint
  issue MD013
  a01e53a, closes #20
• changelog: updated templates to address markdownlint issues MD032 and MD022
  1a87e67, closes #20
• changelog: fixes whitespace issues
  91b5b72, closes #20
• correct is_prerelease() for SemVer
  0e99770