v0.5.0

• Upgraded webpack, TypeScript, and all other dependencies to latest versions.
• Now using [email protected], which includes chai@4.
• Connected project to Travis-CI, with preparations for SauceLabs integration.
• Moved react and react-dom to peerDeps.
• Project no longer leaks (specific) @types/react or @types/react-dom to dependencies.
• Reworked project dev mode to work from sources.
• Removed .npmignore and used the files attribute in package.json to only include necessary files in publishing target.