major refactor to introduce project id state machine

src/components/menu-bar/menu-bar.jsx

src/containers/gui.jsx

src/containers/project-loader.jsx

src/containers/project-saver.jsx

src/lib/hash-parser-hoc.jsx

src/lib/project-loader-hoc.jsx

src/lib/project-metadata-hoc.jsx

src/lib/project-saver-hoc.jsx

src/lib/vm-manager-hoc.jsx

src/reducers/project-id.js

src/reducers/vm.js