v2.5.0

Prop Improvements

This minor version bump brings two quality-of-life improvements:

• The higher-order-component that handles all prop validation and management has been renamed from Converter to FlipMovePropConverter. This is to make it clear, when it raises an invariant violation, which NPM package is the culprit.
• children is no longer a required prop. Since v2 brought enter/leave animations, it is a valid usecase for the initial component to be mounted without children, and have them enter in programmatically.