Fix bad merge that removed react-treebeard dep from lib/ui

[shilman]

Issue: N/A

What I did

Fix a bad merge, but submitting it as a PR because there are still some version issues and also I'm not comfortable with the current state on my machine. Somehow the treebeard stuff is still working on my machine in cra-kitchen-sink even when I do a clean install and I don't understand why.

What I need

@ndelangen can you review and also fix these version issues?

lerna WARN EHOIST_ROOT_VERSION The repository root depends on babel-core@^6.25.0, which differs from the more common babel-core@^6.24.1.
lerna WARN EHOIST_PKG_VERSION "@storybook/vue" package depends on babel-core@^6.24.1, which differs from the hoisted babel-core@^6.25.0.
lerna WARN EHOIST_PKG_VERSION "vue-example" package depends on babel-core@^6.24.1, which differs from the hoisted babel-core@^6.25.0.
lerna WARN EHOIST_ROOT_VERSION The repository root depends on babel-preset-env@^1.6.0, which differs from the more common babel-preset-env@^1.5.2.
lerna WARN EHOIST_PKG_VERSION "@storybook/vue" package depends on babel-preset-env@^1.5.2, which differs from the hoisted babel-preset-env@^1.6.0.
lerna WARN EHOIST_PKG_VERSION "vue-example" package depends on babel-preset-env@^1.5.2, which differs from the hoisted babel-preset-env@^1.6.0.
lerna WARN EHOIST_ROOT_VERSION The repository root depends on enzyme@^2.9.1, which differs from the more common enzyme@^2.8.2.
lerna WARN EHOIST_PKG_VERSION "@storybook/ui" package depends on enzyme@^2.8.2, which differs from the hoisted enzyme@^2.9.1.
lerna WARN EHOIST_PKG_VERSION "@storybook/vue" package depends on react@^15.5.4, which differs from the hoisted react@^15.6.1.
lerna WARN EHOIST_PKG_VERSION "@storybook/vue" package depends on react-dom@^15.5.4, which differs from the hoisted react-dom@^15.6.1.
lerna WARN EHOIST_PKG_VERSION "@storybook/vue" package depends on shelljs@^0.7.7, which differs from the hoisted shelljs@^0.7.8.
lerna WARN EHOIST_PKG_VERSION "@storybook/react" package depends on babel-plugin-react-docgen@^1.6.0, which differs from the hoisted babel-plugin-react-docgen@^1.5.0.

I propose we fix up the versions, do one last alpha release, and test it out before we pull the trigger on the 3.2 release.