A new XNAT client that exposes XNAT objects/functions as python objects/functions.
Description
A new XNAT client that exposes XNAT objects/functions as python objects/functions.
The aim is to abstract as much of the REST API away as possible and make xnatpy feel
like native Python code. This reduces the need for the user to know the details
of the REST API. Low level functionality can still be accessed via the connection object
which has get, head, put, post, delete methods for more directly calling the REST API.
