2.1.0

Next minor version 2.1.0 is out! 🍓

• enhanced documentation (yay!)
• Connection::transactional() returns callable's returned value, thanks @jakubkulhan [36d2d44]
• added numeric index access for Row [1eb2fee]
• fixed storing DateInterval value, thanks @f3l1x [2127122]
• See full commit changelog since version 2.0.