As discussed in https://gitlab.com/gitlab-org/gitlab-ce/issues/42891

GitHub uses a library called Licensee to identify a project's license
type. It shows this information in the status bar and via the API if it
can unambiguously identify the license.

This commit updates the LICENSE file so that it contains the exact text
of the MIT license. It also moves the reference to third-party software
licensing to the README.

These changes allow Licensee to successfully identify the license
type of GitLab's codebase as MIT.

Signed-off-by: Andrea Kao <eirinikos@gmail.com>

Based on gitlab-org/gitlab-ce!14374 and gitlab-org/gitlab-ee!2935.

Signed-off-by: Rémy Coutable <remy@rymai.me>

Signed-off-by: Rémy Coutable <remy@rymai.me>

Also reformats paragraphs for a max width of 80 chars

[ci skip]

Also reformats paragraphs for a max width of 80 chars

[ci skip]

Implement the suggestions of Mike: The "in whole or in part" is important mostly because it removes ambiguity, but also because there may be code that is responsible for the generation of the JavaScript/CoffeeScript code. If a file generates non-trivial JavaScript, then that JavaScript code must be free; but it can't be free in and of itself, because it does not appear in the source code. You can otherwise: