Version 2.1.0

New features:

• RSA signers
• ECDSA signers
• Token::getClaim() method

Improved readme

1.0.1

Fixing some codign style

1.0.0: * JWT plain token creation

Implemented features

• JWT plain token creation
• JWS with HMAC-SHA256, HMAC-SHA384 and HMAC-SHA512 creation
• Parsing JWT/JWS from strings