Update performance-now version to ^2.1.0

react-motion has a dependency of performance-now@^0.2.0

It also has a dependency on raf@^3.1.0 which currently resolves to [email protected]

[email protected] has a dependency on performance-now@^2.1.0

This means that including react-motion as a dependency introduces 2 major versions of raf.

Can react-motion be updated to use performance-now@^2.1.0? Or a range that includes both 0.2.0 and 2.1.0?