Upgrade/Overhaul Checklist

[leeallen337]

There are a lot of things in the boilerplate that should be upgraded and a lot of minor changes that we always implement after starting a new project that we should just include in the boilerplate.

Tasks:

• Upgrade webpack & webpack-dev-server
• Upgrade react to v16.0+
• Upgrade unit testing packages
• Include the prop-types package
• Upgrade react-router to react-router-dom, add default 404 page
• Move routes into their own directory
• Remove packages that are not needed anymore (e.g. webpack-dev-middleware)
• Implement Travis for pull requests to the boilerplate
• Protect master and require code reviews for pull requests
• Upgrade redux-persist
• Add constants directory with actionTypes.js as first file
• Add routes constants file
• Fix peer dependencies (e.g. html-webpack-plugin, babel-loader, etc.)
• Incorporate ImmutableJS along with redux-immutable and make sure it works with redux-persist
• Start using babel-preset-env

I'm going to be making minor pull requests for these upgrade rather than upgrading everything all at once.

[leeallen337]

Note: redux-persist v5 does not support an ImmutableJS object at the top level and the top level must be a POJO (Plain Old JavaScript Object). I'll be following the issue here which allows us to have a top level ImmutableJS object in v4