ng2-pdf-viewer 4.0.0 on Node.js NPM

Location of bundles is changed.

Therefor SYSTEMJS config is now updated to:

var map = {
    'ng2-pdf-viewer': 'node_modules/ng2-pdf-viewer/bundles',
    'pdfjs-dist': 'node_modules/pdfjs-dist'
}

and then add to packages

var packages = {
    'ng2-pdf-viewer': { defaultExtension: 'js' },
    'pdfjs-dist': { defaultExtension: 'js' }
}