v1.5.1

• Move mocha and should to devDependencies
• bin/svg-sprite.js: use _.merge instead of the custom function (#442)
• fix(logger): use Winston v3 format configuration
• refactor(logger): remove dateformat dependency
• Links with "target=_blank" should prevent phishing attacks
• Remove lodash.pluck dependency and use _.map (#388)
• Switch to Buffer.from (#389)
• Switch to GitHub Actions
• Update minor and patch dependencies and regenerate package-lock.json
• test: add a separate css.packed.12.png file for Node.js > 10
• Remove the unused vinyl-fs and mocha-lcov-reporter devDependencies
• Update dependencies
• Drop Node.js 6.x support from CI.
• Remove pretest script
• CI: run example too
• Rename LICENSE and fix links to repo

v1.5.0...v1.5.1