Change clone protocol from git:// to https://

Cloning with git: protocol doesn't allow to change anything in `.git/`, like when using `git pull`.
Updare grunt-jekyll dependency
Remove [type]

type="text/css" isn't needed
Merge pull request #10996 from ZDroid/patch-6

Updare grunt-jekyll dependency
Merge pull request #10998 from ZDroid/patch-7

Remove [type]
Merge pull request #10896 from ZDroid/patch-3

Change clone protocol from git:// to https://
there's no reason for holder.js to be executable