Add constructive criticsm to collaboration.
Add constructive criticsm to collaboration.

arokem/nipy.github.com,vsoch/nipy.github.com,vsoch/nipy.github.com,lesteve/nipy.github.com,arokem/nipy.github.com,vsoch/nipy.github.com,lesteve/nipy.github.com,vsoch/nipy.github.com,arokem/nipy.github.com,lesteve/nipy.github.com