repo: update license and headers

[vince-fugnitto]

Description

The commit includes the following updates which are prerequisites for
moving the repository under the eclipse foundation:

• updates the repository license (license file and package.json
  entry).
• updates the headers of source code,
• includes the header snippet to easily add new licenses.

See here for motivation: motivation

See here for details: details

Signed-off-by: vince-fugnitto vincent.fugnitto@ericsson.com

[marcdumais-work]

@vince-fugnitto the README still mentions Apache 2.0 license. You should probably use the same blurb we have in the main repo, that also covers the Theia trademark as well.

[marcdumais-work]

I notice that the templates folder contains many source code files. Have you considered adding license headers for these too? If so, what made you decide against?

[vince-fugnitto]

@marcdumais-work

@vince-fugnitto the README still mentions Apache 2.0 license. You should probably use the same blurb we have in the main repo, that also covers the Theia trademark as well.

Thank you! The readme has now been updated with a proper license and trademark.

I notice that the templates folder contains many source code files. Have you considered adding license headers for these too? If so, what made you decide against?

The templated are ultimately what the user will receive when they generate the extension, I did not want to add our headers to their generated extension.

[marcdumais-work]

The templated are ultimately what the user will receive when they generate the extension, I did not want to add our headers to their generated extension.

I though it might be something like that. Makes sense I think, in this particular case.

[marcdumais-work]

Last thing I noticed: I think it would be good to give a bit of context in the commit message, about why this is being done.

e.g. mention the move of the repo to the Foundation: https://github.com/theia-ide/vscode-builtin-extensions/pull/36/commits

update: can you, as for vscode-builtin-extensions, include a link to the repo's wiki page about relicensing?

[vince-fugnitto]

Last thing I noticed: I think it would be good to give a bit of context in the commit message, about why this is being done.

Done!

[marcdumais-work]

LGTM, thanks @vince-fugnitto !

[JonasHelming]

Thanks vince!

[marcdumais-work]

I think the re-licensing exercise for this repo is all done! I have updated the wiki accordingly:
https://github.com/theia-ide/generator-theia-extension/wiki/Re-licensing-theia-ide-generator-theia-extension

I think we can merge this PR.

Thanks @JonasHelming and @vince-fugnitto