Merge pull request #4 from PhDP/master

last edits
Tim
Merge pull request #25 from tpoisot/master

Final modifs
revtex 4.1 format
Add Liza Gross's suggested reference
First round of small editions
finish editing
rm msNotes.bib
final final editing
Add ref to Haldane's sieve
rm arXiv from keywords
Merge branch 'master' of https://github.com/PhDP/article_preprint
fix typo
fix refs
fix typo in Ethan's address