npm license change

[T.C. Hollingsworth]

npm, the Node.js package manager, has changed license [1] from a
modified version of the MIT [2] to the Artistic 2.0 [3] license
effective with version 1.3.6.  This version is now in Rawhide and
queued for updates-testing in Fedora 19 and 18 as well as EPEL 6.

Fedora Legal believes both licenses to be GPL-compatible so this
shouldn't cause anyone trouble.  On the contrary, using a standard
license instead of a custom-written one should only make peoples'
lives easier.  ;-)

-T.C.

[1] https://github.com/isaacs/npm/commit/c32391b1efd70a861cebc77e0cc784a46af5de21
[2] https://fedoraproject.org/wiki/Licensing/MITNFA
[3] http://www.perlfoundation.org/artistic_license_2_0