Fix linting errors

Bump to 0.3.0

Support HTML in notification messages

Update dependencies and create yarn.lock

Update dependencies and switch to nyc

Rename test files

Update dependency and coverage test config

Update gitignore

Define React in peerDependencies

Compile script before publishing

Update description for testing

Update dependencies in README

Modify library path

Fix unnecessary file in NPM package

Exclude index.js from library