next-updater has upgraded 18 dependencies

Hi!

I have upgraded dependencies to the latest non-breaking versions

    coveralls 2.10.0 -> 2.11.2
    grunt-banner 0.2.2 -> 0.2.3
    grunt-contrib-concat 0.4.0 -> 0.5.0
    grunt-contrib-copy 0.5.0 -> 0.7.0
    grunt-contrib-uglify 0.4.0 -> 0.7.0
    grunt-deps-ok 0.2.0 -> 0.5.2
    grunt-karma 0.8.3 -> 0.9.0
    grunt-mocha-test 0.10.2 -> 0.11.0
    grunt-nice-package 0.5.2 -> 0.9.2
    grunt-npm2bower-sync 0.3.0 -> 0.4.0
    jshint-stylish 0.2.0 -> 0.4.0
    karma 0.12.16 -> 0.12.28
    karma-chrome-launcher 0.1.4 -> 0.1.7
    karma-coverage 0.2.2 -> 0.2.7
    karma-mocha 0.1.3 -> 0.1.10
    mocha 1.19.0 -> 1.21.5
    pre-git 0.0.16 -> 0.1.1
    time-grunt 0.3.1 -> 0.4.0

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