LICENSE-FOR-API

                    Tavendo API Copyright License
                      Version 1, 3 October 2015

Copyright (C) 2015 Tavendo GmbH <http://tavendo.com/>

Everyone is permitted to copy and distribute verbatim copies of this
license document, but changing it is not allowed.


                              Preamble

As recent court decisions in the Oracle vs. Google case have shown, APIs
are copyrighted under US law. Open source licenses do not deal
explicitly with the copyright in APIs. 

In order to give you certainty about your rights regarding the APIs
implemented by the code in this project and how they may affect your
rights in the code itself, we add this explicit API copyright license.

Nothing in this license is intended to take away rights which the
open source license to the Program grants you.


                            Definitions

Tavendo (We/Us) - Tavendo GmbH, Germany

Program - The open source project which this license has been
    applied to. 

API - An interaction surface for external code with the Program, as
    intended by the contributors to the Program. An API is defined
    through and described in the Program documentation. A Program may
    implement more than one API.

User (You) - Any user who has receive the Program in accordance with
    the conditions of the Program's open source license, and is using
    the Program in accordance with the provisions of said license.


                           License Terms

The following terms apply to the Program's APIs as far as We hold the
copyright in these APIs. 

We grant You a license to use the Program's API as part of your usage
of the Program.

In addition to usage of the unmodified program, Your usage may include
modifying the Program in ways which

* do not change the APIs,
* correct errors in the implemention of the APIs in the Program, where
  an error is a deviation from the API definition and documentation, or
* remove those parts of the Program implementing the APIs.

Licensed usage does not include modifying the program

* in ways which change the APIs, or
* to extend the APIs. 

Extending an API includes implementing roles for API calls which the
implemented API does not support, e.g. implementing the caller role for
an API call where only an endpoint for this call is implemented.