Add cl-hue

[jd]

That's a library to control Philips Hue light system via a REST API.

https://github.com/jd/cl-hue

[quicklisp]

Can you please add license info to the project?

[jd]

Sure, now licensed with Apache 2.

[quicklisp]

Thanks. Could you add that info to the :license option of the system file?

[jd]

Done.