v0.15.0

A lot of updates and tweaks since the last minor version:

• Update SSR:
  • use async capable renderToString method
  • Provides a generator for script for event capture for progressive hydration
• Update hydration:
  • Support multiple contexts (partial hydration)
  • Event capture and replay (progressive hydration)
• Support for ternaries and binary operators in JSX templates
• Better classList binding performance
• Better handling of children in spreads
• Pass props to render function in class components