chore(package): update lerna to version 2.0.0-rc.1
chore(package): update lerna to version 2.0.0-rc.1

https://greenkeeper.io/

rhalff/storybook,rhalff/storybook,bigassdragon/storybook,storybooks/storybook,bigassdragon/storybook,storybooks/react-storybook,nfl/react-storybook,enjoylife/storybook,storybooks/storybook,bigassdragon/storybook,shilman/storybook,nfl/react-storybook,jribeiro/storybook,nfl/react-storybook,shilman/storybook,kadirahq/react-storybook,rhalff/storybook,storybooks/react-storybook,rhalff/storybook,kadirahq/react-storybook,storybooks/react-storybook,storybooks/storybook,storybooks/storybook,jribeiro/storybook,enjoylife/storybook,shilman/storybook,storybooks/storybook,jribeiro/storybook,bigassdragon/storybook,nfl/react-storybook,shilman/storybook,storybooks/react-storybook,storybooks/storybook,rhalff/storybook,enjoylife/storybook,storybooks/storybook,enjoylife/storybook,jribeiro/storybook,rhalff/storybook