travis: update npm api key [was: v1.1.1 is not on npm]

[pkra]

I just noticed this. Need investigating.

[pkra]

I've manually published 1.1.1 and the PR should get travis to work again.

[pkra]

Fixed in develop.

[pkra]

Confirmed to be working - v1.2.0-beta.0 was published as usual.