Apparently the SPDX license list used by NPM supports an "or later"
identifier; that's good, as this is an incredibly important distinction; I
was otherwise going to drop it and use my own custom identifier.
* package.json: License field set to GPL-3.0{=>+}
Was not able to rebase because I already stupidly pushed, and Savannah does
not allow --force, or deleting `master' to circumvent. ;) Not that it would
be a good idea rergardless.
Was the key "tags" in the past? Regardless, it doesn't work [anymore], so
ease.js keywords haven't been searchable in npm for quite some time /
forever.