Fix 1.0.3

[onurkerimov]

Types of changes

There was a backwards compatibility issue for older versions of Node.js. Now, the .babelrc file is changed to supper broader Node versions.

• [x] Bugfix (non-breaking change which fixes an issue)
• [ ] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)