Fixed incomplete package.json dependecies

While running `grunt` (or `grunt jshint`) I got the following error, indicating that you're using more dependencies than get installed through `npm i`:

    PS d:\projects\conditioner> grunt jshint
    >> Local Npm module "grunt-contrib-jshint" not found. Is it installed?
    >> Local Npm module "grunt-contrib-jasmine" not found. Is it installed?
    >> Local Npm module "grunt-contrib-requirejs" not found. Is it installed?
    >> Local Npm module "grunt-contrib-watch" not found. Is it installed?
    Warning: Task "jshint" not found. Use --force to continue.
    Aborted due to warnings.

I executed the following command to install the missing dependencies and update package.json:

    npm i grunt-contrib-jshint grunt-contrib-jasmine grunt-contrib-requirejs grunt-contrib-watch --save

To avoid this in the future, always install dependencies using `npm i <package> --save`

Secondly, there was a semicolon missing, the only JSHint error at the time of writing. I fixed it.