If you want to work on Coot, please have the following signed by the
copyright control people at your university/institution (and send it
to me):

Either:

[University X] hereby disclaims all copyright interests in the package
Coot (a suite of programs for macromolecular display and model
building).

or:

[University X] hereby allows the contributions of [Person Y] to the
package Coot (a suite of programs for macromolecular display and model
building) to be distributed and licensed under the GNU General Public
Licence.

[Person Z]  [date]