Fix composer configuration.
Fix composer configuration.

Added these sections:

- autoload
- keywords
- authors

schmittjoh/JMSPaymentCoreBundle,schmittjoh/JMSPaymentCoreBundle,regularjack/JMSPaymentCoreBundle,regularjack/JMSPaymentCoreBundle,regularjack/JMSPaymentCoreBundle,schmittjoh/JMSPaymentCoreBundle,schmittjoh/JMSPaymentCoreBundle