Relations & Date / DateTime

What is new ?

• Relation class introduced - relation is now an object with ability to render itself into string value
• Date & DateTime classes added - response is now an Object with ability to render itself into string value
• stripBody function added - remove all no IDs

What is fixed

• Releation != Relations - Better work with response that come form relations
• Better AbraFlexi\Exception message - the whole error message is shown
• #24 - Bypass error of processing plaintext requested as json when pull Fio bank

What is gone

• Deprecated function getColumnsFromFlexiBee() was removed