Core/: Relicense all files except COBranch as MIT, with Quentin's permission. Update the copyright person to be the main author of the current state of the file. In authors I tired to list everyone who has ever contributed to the file, in order of how much of the current version they wrote. Mostly it's a guess so let me know if I am off somewhere.

git-svn-id: svn://svn.gna.org/svn/etoile/trunk/Etoile/Frameworks/CoreObject@9873 7b3f36aa-e6db-49c1-8b4c-66eac1997e64