Hello Minecraft! Launcher is a Minecraft launcher. License is GPL v3, see http://www.gnu.org/licenses/gpl.html
If you really want to join the development, here's some requests.
- The Development Environment is Netbeans 8.0.2 with Gradle Support plugin.
- The project is built on Java 1.8, using the retrolambda backported to Java 1.7. So DO NOT use the libraries of Java 8 like Stream APIs.
- DO NOT modify *.gradle.