Implemented EiC (Lorena Barba) comments, and added final review

The email notice of the final acceptance of this paper in CiSE has been
included in the project and the stylistic points that were raised by the
editor in chief (EiC) have also been implemented. The most important points
were:

- Including citations within the text structure (as if they would be
  footnotes), so things like "see \cite{...}" should have been changed.

- Hyperlinks should be printed as footnotes (because the journal gets
  actually printed).

Also, to avoid the second listing breaking between pages, it has been moved
to after the next paragraph.

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