0.4.5

Changes

Enhancements

• Implemented card expiry validation with error messages. dfc260c
• Added keywords to package.json. b0568e1
• Amended .gitignore. 8a940c3
• Replaced Webpack with Rollup. 6ec1693
• Added Flow and flowified code. 8552972

Special thanks

• Thodoris Bais (thodorisbais)