Daniel's adds a highly speculative box where he's trying to work out a few ideas on paper
Merge pull request #3 from stouffer/master

Daniel's adds a "speculative" Box 2
Update of the PDF
A very minor change in Bex 2: species abundance modify the realized (measured) int. strength in LV-type models"
Merge pull request #2 from tpoisot/master

Addition of box2