Copy the license from RequestPolicyContinued

[fmarier]

Are the lists licensed under the same terms as RequestPolicy itself?

The repo currently doesn't say anything about the copyright of the subscriptions.

[nodiscc]

@fmarier Thanks for pointing this out. I don't know if subscriptions lists can reasonably be licensed under GPL (this is not really software, but user contributed lists). Maybe the CreativeCommons Attribution-ShareAlike 4.0 International (CC BY-SA 4.0) license would be more appropriate?

Your input is welcome @myrdd @reqsub @squarefractal

[myrdd]

From what I know it would be uncommon to use GPL. What's the license of other such lists?

I think we should choose the licence carefully. I could imagine that license compatibility with the licenses of other such lists might be an important aspect.

[fmarier]

The Disconnect.me list is also GPLv3+: https://services.disconnect.me/disconnect-plaintext.json

[myrdd]

Thanks for pointing that out. Is there anything that would argue agains GPL?

ABP filter list "easylist" seems not to have a license. https://adblockplus.org/de/subscriptions

[ghost]

ABP filter list "easylist" seems not to have a license. https://adblockplus.org/de/subscriptions

Actually it's also GPLv3+ or CC-BY-SA 3.0: https://easylist-downloads.adblockplus.org/easylist.txt:

! Licence: https://easylist-downloads.adblockplus.org/COPYING

Unless otherwise noted, the contents of the EasyList repository (https://hg.adblockplus.org/easylist/) is dual licensed under the GNU General Public License version 3 of the License, or (at your option) any later version, and Creative Commons Attribution-ShareAlike 3.0 Unported, or (at your option) any later version.

It might be best to use this license for these subscriptions.

[myrdd]

Thanks @squarefractal, dual licensing sounds like it's more flexible.

[fmarier]

I've revised this PR to include both CC BY-SA and the GPL.

[nodiscc]

Thanks