anchor.diff:  ==== CO10
   _The project has a well-known homepage that points to all the information required to operate according to this maturity model._
   
  -http://groovy.apache.org/ redirects to http://groovy-lang.org/ for now. The plan 
  +OK: http://groovy.apache.org/ redirects to http://groovy-lang.org/ for now. The plan 
   for the future is to use the former for Groovy development topics, and the latter
   for its user community.
   
  
positive.code: ==== LC20
  _Libraries that are mandatory dependencies of the project's code do not create more restrictions than the Apache License does._
  
  TODO: do we have a documented verification of that? JIRA ticket? 
  
  ==== LC30
  _The libraries mentioned in LC20 are available as Open Source software._
  
  TODO: See LC20 
  
  ==== LC40
  _Committers are bound by an Individual Contributor Agreement (the "Apache iCLA") that defines which code they are allowed to commit and how they need to identify code that is not their own._
  
negative.code: that happens.
  
  == Status of this document
  All open items resolved, ready for PPMC approval voting. 
  
  == Overall assessment
  All the below items are marked OK, Groovy looks ready to graduate, discussions and votes 
  are ongoing on the project's dev list as I write this (October 2015).
  
  == Maturity model assessment 
  