Make the root directory the public directory

[gogins]

Making the root directory the public directory will enable developing pieces without rebuilding the project on every edit. This should end up saving users considerable time.

• [x] Change the README.md file to suit both cloud-music and cloud-5.
• [x] Remove, or move into the attic, all non-featured pieces.
• [x] Possibly, create a tests directory.
• [x] Ensure that a fresh clone will build and produce a functional Web site that will play all pieces.
• [x] Ensure that unzipping the release archive creates a functional Web site that will play all pieces.

[gogins]

The main problem is separating the actual pieces from the infrastructure. Building the project must move the built infrastructure into the root directory, without committing any infrastructure in the root directory to the repository, and without overwriting the actual pieces.

[gogins]

I ended up just moving all contents of the public directory into the repository root directory, and then fixing problems as they arose.