3.2.0

This is a maintenance & improvement release:

• replacing deprecated eslint-loader w/ eslint-webpack-plugin & babel-eslint w/ @babel/eslint-parser
• babel config file removed, config moved into webpack configs (too small for it's own file)
• readme simplified & updated
• sass linting has been improved
• sass boilerplate tidied-up
• all dependencies updated

Special thank you to @LockeAG for tipping me off about the antiquated eslint depedencies.