Add copyright headers, update license to GPLv3+

6 jobs for master in 1 minute and 21 seconds (queued for 2 seconds)
Status Job ID Name Coverage
  Dist
passed #664043
dist

00:00:25

 
  Test
passed #664045
doc

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passed #664044
lint

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  Deploy
passed #664047
pages

00:00:17

passed pages:deploy

00:00:00

passed #664046
sccb

00:00:14