Re: GPL and other licences

[Alfred M. Szmidt]

   With the new one (without advertising clause), relicensing under
   the GPL is within the scope of the original license.

Only the copyright holder has the legal right to _relicense_ the work.
I.e. change the license of the original copyright code.

   > Only person who can re-license something is the copyright holder.

   Wrong.  The only person who can give _permission_ to sublicense is the
   copyright holder. 

Sub-license != _re_-license.

Re-license ==> Changing the license.

Once again, only the copyright holder can change the license of the
work, i.e. re-license it.  When you combine a modified-BSD-license
(just so that David who doesn't understand assumptions grasps this)
licensed, you are dual licensing the work, part of it is under the
modifed-BSD license, and part of it is under the new license, for
example the GPL.

When you relicense a work, you can _remove_ the original license.
This is not allowed with the modified-BSD license.