Funding for this research was provided by:
EC | European Research Council (ERC) (638314)
Received: 31 March 2018
Accepted: 27 July 2018
First Online: 16 August 2018
Change Date: 5 September 2018
Change Type: Update
Change Details: The originally published HTML version of this Article was updated shortly after publication, because the previous version omitted links to Supplementary Movies 1-8. The error has now been fixed and the Supplementary Movies are available to download from the HTML version of the Article. In addition, this Article was originally published without the accompanying Peer Review File. This file is now available in the HTML version of the Article; the PDF was correct from the time of publication.
: The authors declare no competing interests.