next-updater has upgraded 16 dependencies

Hi!

I have upgraded dependencies to the latest non-breaking versions

    ggit 0.0.5 -> 0.6.1
    cli-color 0.2.3 -> 0.3.2
    sprintf 0.1.3 -> 0.1.5
    optimist 0.6.0 -> 0.6.1
    custom-logger 0.2.1 -> 0.3.0
    check-types 0.6.5 -> 0.8.1
    cli-table 0.2.0 -> 0.3.1
    glob 3.2.7 -> 3.2.11
    gauss 0.2.8 -> 0.2.12
    moment 2.5.0 -> 2.8.4
    commander 2.1.0 -> 2.6.0
    update-notifier 0.1.7 -> 0.2.2
    grunt-bump 0.0.13 -> 0.0.16
    grunt-contrib-jshint 0.8.0 -> 0.10.0
    grunt 0.4.2 -> 0.4.5
    gt 0.8.21 -> 0.8.47

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