Refs #14 - Alphabetize dependencies.
Refs #14 - Remove unused dependencies.
Refs #14 - Lock down to updated versions.
Refs #14 - Update README with instructions on using npm outdated.
Refs #14 - Downgrade gulp-util because other dependencies require 2.2.*.

Everything still seems to work with 3.0.0 but warnings are displayed.
Refs #14 - Fix outdated module name in application.jsx.
Refs #14 - Update react router usage.
Refs #14 - Use nested routing to show layout.
Merge pull request #14 from synapsestudios/feature/14-clean-up-package-json

Clean up package.json