This change fixes both:
1. making multipart/form-data requests with content-type
header for every individual boundary
2. generating correct CURL command for multipart/form-data
request, allowing specifying content-type header for every
individual boundary
Refs #4826
Refs #5356
* es2015 bundle with dependencies via npm script build:es:bundle
* es2015 bundle without dependencies via npm script build:es:bundle
* jest dependency for test:artifact
* migrate babel.config.json to babel.config.js and maintain env support for commonjs and es2015
* remove polyfill
* fix es syntax: replace module.exports with export
* fix es syntax: remove .jsx extension inside import
The request body is an immutable.js OrderedMap rather than a string,
so this fixes the type error:
TypeError: request.get(...).split is not a function
Adds a special curl command argument for files, e.g.
curl -F "param=value" -F "file=@filename.txt;type=text/plain"
