fix link behaviour

[k-ave]

At the moment if you click on a link while pressing the ctrl-key the current page plus a new tab will open with the requested page, which makes browsing multiple functions/tags a bit tiresome.

With the changes it should keep the browser behaviour without affecting Google-Stats.

However new URL(href) might say certain links are invalid like 'www.example.com' as there is no protocol and thus are not tracked.

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[solved]
I did try to get grunt running, but had no luck so for now only one file.

Did following, but keep getting Missing script: "grunt" (installing grunt-cli, didn't work either as suggested in a few StackOverflow Questions)

cd builders/html/assets
npm install
npm run grunt

[k-ave]

I was being a dummy, needed to just type grunt instead of npm run grunt. It also needed some additional packages for css/sass (ruby and sass) but afterwards it worked.

Added the additional files in a second commit.
I didn't change anything on the .css however since I needed to change the assetBundleVersion it created it's own file for it.

[zspitzer]

looks good, thanks