[hibernate-dev] Copyright headers

[Emmanuel Bernard]

Guys,
It is not OK to blindly replace a copyright header with another one.
One must at least make sure that:
 - the original copyright date is not erased
 - copyright holders included in the header are not removed

For the date, if a file was initially created in 2007 and updated this year (or any other year in between), the reference will then be 2007-2011

See http://community.jboss.org/wiki/CopyrightOwnershipandLicenses for more info.