Merge pull request uber#74 from uber/issue_71

Upgraded d3 version to ^5 to fix issue uber#71

Bumped package version

Merge pull request uber#72 from ajbogh/zoom_fix_issue_71

Fixed zoom issue with d3 v4 adding style property

Bumped version to 4.1.5.

Added yarn.lock to gitignore.

Bumped version to 4.1.3.

Bumped version to 4.1.2.

Merge branch 'NameFILIP-issue-58'

Bumped package version

Merge pull request uber#51 from ajbogh/react-event-chain-merger

WIP: Initial merger of react-event-chain with webpack, flowtype, babe…