Adds support for returning promises, which gives the possibility to use async/await keywords and create a workflow without callback hell.
Added jsdoc to the promise returning methods.
Added the possibility to give an bank url as string to the constructor.
Adds support for returning promises, which gives the possibility to use async/await keywords and create a workflow without callback hell. Added jsdoc to the promise returning methods. Added the possibility to give an bank url as string to the constructor.