Include license file in the .gem release

[strzibny]

Hi,

I am packaging log4r for Fedora and I need to include the license file alongside the source code. It would be beneficial and helpful if the license file(s) would be included in the official .gem release.

[colbygk]

Thanks for bringing this to my attention, I will add it.

[voxik]

You can also specify the license in the .gemspec file, while you are at it. Thanks.