Update webpack-dev-middleware from 3.1.1 to 3.1.2 in lib/core
Update webpack-dev-middleware from 3.1.1 to 3.1.2 in lib/core

storybooks/react-storybook,storybooks/storybook,storybooks/storybook,rhalff/storybook,storybooks/react-storybook,storybooks/storybook,rhalff/storybook,storybooks/react-storybook,storybooks/storybook,rhalff/storybook,storybooks/react-storybook,rhalff/storybook,rhalff/storybook,rhalff/storybook,storybooks/storybook,storybooks/storybook,kadirahq/react-storybook,storybooks/storybook,kadirahq/react-storybook