Missing GPL license

[Nicd]

Hey, I noticed this repository does not seem to have license information. If no such license is added, the code is copyrighted and cannot be used by others (which is fine if that is what you want).

But I also notice that you are using GPL-licensed code in these three files:

• https://github.com/alberti42/iTunes-Volume-Control/blob/dcbc4c96a4cf1a579413f8899869796b69900016/iTunes%20Volume%20Control/CompatibilityFixes.h
• https://github.com/alberti42/iTunes-Volume-Control/blob/dcbc4c96a4cf1a579413f8899869796b69900016/iTunes%20Volume%20Control/AppleRemote.h
• https://github.com/alberti42/iTunes-Volume-Control/blob/dcbc4c96a4cf1a579413f8899869796b69900016/iTunes%20Volume%20Control/AppleRemote.m

IANAL, but my understanding is that GPL is a copyleft license meaning that if you use it in your project, that project must also be licensed with a GPL-compatible license (basically GPL). If no such license is added, this project is in violation of the GPL.

The easiest way would be to license the project as GPL. A second way would be to remove the GPL code from the project.

Note that the iTunes and Spotify icons are a separate matter, I don't know their license terms.