RFC license change

[tiborsimko]

In order to facilitate collaboration with external non-GPL licensed systems, we consider changing the REANA platform license from GNU GPL to a more permissive MIT License.

According to the change log, here is the full list of authors and contributors:

• [x] Alexander Baranov (@sashabaranov)
• [x] Anton Khodak @anton-khodak
• [x] Diego Rodriguez @diegodelemos
• [x] Dinos Kousidis @dinosk
• [x] Harri Hirvonsalo @hjhsalo
• [x] Lukas Heinrich @lukasheinrich
• [x] Michael R. Crusoe @mr-c
• [x] Sinclert Perez @Sinclert
• [x] Tibor Simko @tiborsimko

Can we please all explicitly express our agreement/disagreement?

[tiborsimko]

P.S. See also @sashabaranov's past one-line documentation fix and contribution license statement at https://github.com/reanahub/reana/pull/47

[tiborsimko]

Tibor Simko (@tiborsimko) agrees with the license change to the MIT License.

[mr-c]

Michael R. Crusoe (@mrc) agrees with the license change to the MIT License.

Though it would be nice if the CWL parts were Apache-2.0 licensed. I agree to that as well.

[dinosk]

Dinos Kousidis (@dinosk) agrees with with the license change to the MIT License.

[diegodelemos]

Diego Rodríguez Rodríguez (@diegodelemos) agrees with the license change to the MIT License.

[sashabaranov]

Alexander Baranov (@sashabaranov) agrees with the license change to the MIT License.

[anton-khodak]

Anton Khodak (@anton-khodak) agrees with the license change to the MIT License.

[Sinclert]

Sinclert Pérez (@Sinclert) agrees with the license change to the MIT License.

[hjhsalo]

Harri Hirvonsalo (@hjhsalo) agrees with the license change to the MIT License.

[lukasheinrich]

Lukas Heinrich (@lukasheinrich ) agrees with the license change to the MIT License.

[tiborsimko]

Closing as agreed; implementation starts separately in every repository.