[scroll-animations] Migrate from WICG to CSSWG

[majido]

CSSWG resolved to move scroll-animations spec to csswg. This issue will track the work needed to migrate the repository and its issues.

[majido]

I plan to migrate the repository without losing any of the history. Git supports merging two unrelated repositories in a single commit which ensure the final commit carries both histories.

Merge

Most merge commits have a diamond shape where one side is branch from the main branch at some earlier point but it is possible to merge to branches that don't share an ancestor. This is what I am proposing to do here.

Here is the series of commands I will be using in csswg-drafts:

$ cd csswg-drafts
$ git remote add wicg git@github.com:WICG/scroll-animations.git
$ git fetch wicg
$ git checkout -b wicg wicg/master
$ mkdir scroll-animations-1
$ mv * scroll-animations-1/
$ git add .
$ git commit -m "Move to sub-directory in preparation to repo migration"
$ ... addition clean ups ...
$ git checkout master 
$ git merge --allow-unrelated-histories wicg

Additional clean up

Use correct name and URL in the spec and README

Remove redundant files:

• .gitattributes
• .gitignore
• scroll-animations-1/CONTRIBUTING.md
• scroll-animations-1/LICENSE.md
• scroll-animations-1/deploy_key.enc
• scroll-animations-1/index.html
• scroll-animations-1/install-bikeshed.sh
• scroll-animations-1/travis.sh
• scroll-animations-1/w3c.json

[majido]

Content is migrated. I have started the discussion with w3c and wicg admins on the best way to migrate issues.

[majido]

Issues have also been migrated! Migration is complete. \o/