* Rename CLA files so they no longer say "draft."

* Change CONTRIBUTING.md to correctly describe the new CLA process,
  remove language related to the old SPI CLAs. Also some touchups to
  README.md.

* Update the project_intake.md to check of various things that we've
  completed.

* Change all references to the old imageworks GitHub URLs to the new
  ASWF ones. (This touches comments at the start of basically every file.)

Signed-off-by: Larry Gritz <lg@larrygritz.com>