Github user stain commented on the issue:
https://github.com/apache/incubator-taverna-databundle-viewer/pull/3
I found that the content of @PCStefan's
[sankey.js](https://github.com/PCStefan/incubator-taverna-databundle-viewer/blob/master/app/assets/javascripts/sankey.js)
almost matched
https://github.com/kunalb/d3-plugins/blob/sankey/sankey/sankey.js (particularly
the - so I've added @kunalb to the (c).
Thanks all! Now we know why it's cool to add those license headers in
advance..
I'm adding:
```javascript
// Copyright (c) 2012-2015, Michael Bostock,
// Nathan Malkin, Kunal Bhalla, Claudiu Stefan Padurariu
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
met:
//
// * Redistributions of source code must retain the above copyright notice,
this
// list of conditions and the following disclaimer.
//
// * Redistributions in binary form must reproduce the above copyright
notice,
// this list of conditions and the following disclaimer in the
documentation
// and/or other materials provided with the distribution.
//
// * The name Michael Bostock may not be used to endorse or promote products
// derived from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE ARE
// DISCLAIMED. IN NO EVENT SHALL MICHAEL BOSTOCK BE LIABLE FOR ANY DIRECT,
// INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING,
// BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY
// OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
// NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE,
// EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
```
and to LICENSE:
```
---------------------------------------------------
app/assets/javascripts/sankey.js is licensed as BSD-3 clause
https://github.com/d3/d3-plugins/blob/master/LICENSE
---------------------------------------------------
```
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