updated webpack

[debragail]

Solves #163

Updated outdated package.json and webpack.config

Related Issue

Motivation and Context

How Has This Been Tested?

Screenshots (if appropriate):

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• [x ] Enhancement that improves upon existing functionality

Checklist:

• [ x] My code follows the code style of this project.
• [ x] My change requires a change to the documentation.
• [ x] I have read the CONTRIBUTING document.
• [ x] I have added tests to cover my changes.
• [ x] All new and existing tests passed.

[mariolo1985]

Thanks for making these changes @debragail. Could you verify that Travis builds successfully before merging your changes and work on one type of changes at a time for a PR? Travis failed for this PR.

It looks like the React components added could be written as a pure function with prop defaults.