Fix URL override still resulting in a (broken) file copy.

Add new creator tools.

Expand the build tools to encompass many more tasks.

Correct location/to mix-up ...

If .url.txt is used, the manifest file should specify that as the download location, not the local "to" location

Switch to Gradle. Use git log --follow for history. ...

This converts the project into a multi-module Gradle build.

By default, Git does not show history past a rename, so use git log
--follow to see further history.