[License-review] For Approval: Convertible Free Software License, Version 1.3 (C-FSL v1.3)

[Elmar Stellnberger]

Full Name: Convertible Free Software License Version 1.3
Short Identifier: C-FSL v1.3
URL1: https://www.elstel.org/license/C-FSL-v1.3.pdf
URL2: https://www.elstel.org/license/C-FSL-v1.3.txt

Rationale and Distinguish:
While the BSD license allows the whole world to re-license and while 
re-licensing is virtually impossible with GPL since every contributor 
would need to consent the C-FSL license goes a practical intermediate 
way restricting the right to re-license to a group called the original 
authors. That way open source developers are not excluded from making 
business with others who want to base a proprietary product on the given 
piece of open source software.

Proliferation Category & Legal Review:
Other/Miscellaneous
The license has now been fully reworked by a lawyer. Besides this 
Version 1.3 features easier and more user friendly forking.

list of software which uses C-FSL v1.1.:
qcoan: https://www.elstel.org/coan
xchroot, confinedrv, bundsteg, debcheckroot, dbschemacmd: also found at 
www.elstel.org