Bootstrap theme for elFinder

• added SCSS support, yarn, Rails 5.

This is a simple Theme for elFinder that changes only the Styling and Icons, the theme doesn't interfere with elFinder's Functionality.

• package.json

{
  "dependencies": {
    ...
    "elfinder-theme-bootstrap": "git+https://git@github.com/maxivak/elfinder-theme-bootstrap.git"
  }
}