Fixe package.json for build release (npm audit fix)

[haricot]

$ git clone https://github.com/Morgul/ui-bootstrap4
$ cd ui-bootstrap4
$ npm install
found 40 vulnerabilities (31 low, 2 moderate, 7 high)
  run `npm audit fix` to fix them, or `npm audit` for details

$ npm audit fix`
+ grunt-contrib-watch@1.1.0
+ marked@0.4.0
+ lodash@4.17.10
+ grunt-html2js@0.5.1
added 78 packages from 89 contrib

[haricot]

This does not solve all the problems and it is not necessarily necessary so I close this PR.

[Morgul]

It would be nice to clean up the devel/docs code some, and move to versions of packages without security issues. But updating some of those is a nest of snakes. ;)

[haricot]

@Morgul, Could we have a 3.0.4? please ! I use several projects that depend on it, it would be more practical. Waiting for angular 7 or other :)

[Morgul]

I'll try to get that done tonight or tomorrow.

[Morgul]

@haricot Just released v3.0.4. :)