next-updater has upgraded 8 dependencies

Hi!

I have upgraded dependencies to the latest non-breaking versions

    check-types 1.3.2 -> 1.4.0
    strip-json-comments 1.0.1 -> 1.0.2
    update-notifier 0.1.7 -> 0.1.10
    coveralls 2.11.1 -> 2.11.2
    grunt-deps-ok 0.5.1 -> 0.5.2
    grunt-nice-package 0.9.1 -> 0.9.2
    gt 0.8.41 -> 0.8.47
    pre-git 0.0.16 -> 0.1.1

Truly yours, [next-updater](https://github.com/bahmutov/next-updater)