Release v0.4.0

Added

• Email notifications
  • initial support

Changed

• CI/Linting

  • re-enable separate golint step to work around what appears to be a bug
    in golangci-lint (golangci/golangci-lint#1249)

• Dependencies

  • upgrade apex/log
    • v1.4.0 to v1.6.0
  • upgrade atc0005/send2teams
    • v0.4.4 to v0.4.5

• Demo content

  • upgrade Go version from v1.14.5 to v1.14.6
  • minor tweaks to output emitted by reset script

• Documentation

  • Cover new flags, environment variables and config file settings
  • Misc fixes for existing rate limit, number of retries and retry delay
  • Refresh existing setup/deploy steps to briefly cover email configuration

• Configuration

  • TOML config file
    • extended with new settings
    • rename some settings in an effort to better communicate intent

Fixed

• golint reporting several "should have comment or be unexported" linting
  issues

• in-place modification of client/alert request headers for Teams message
  formatting leads to unintentional "spillover" to email notifications

References

• See the v0.4.0 milestone for the issues associated with this release.
• See our CHANGELOG for more information.