Official release for MangoPay API v2 (http://docs.mangopay.com/)

Changes:
• Move property CardId from PayInExecutionDetailsDirect class to PayInPaymentDetailsCard class

Added features:
• Card pre-authorization
• PayInBankWire
• Get user transactions
• Get user cards
• New type of documents for KYC (ARTICLES_OF_ASSOCIATION, SHAREHOLDER_DECLARATION, ADDRESS_PROOF)