Removes white-space at the beginning of the compiled files. See #1102.

Fix problems with some blunder and postcss.

• New animations:
  • ShakeY
  • fadeInTopLeft
  • fadeInTopRight
  • fadeInBottomLeft
  • fadeInBottomRight
  • fadeOutTopLeft
  • fadeOutTopRight
  • fadeOutBottomRight
  • fadeOutBottomLeft
  • lightSpeedInRight
  • lightSpeedInLeft
  • lightSpeedOutRight
  • lightSpeedOutLeft
  • backOutDown
  • backOutLeft
  • backOutRight
  • backOutUp
  • Bouncing entrances
  • bounceIn
  • bounceInDown
  • bounceInLeft
  • bounceInRight
  • bounceInUp
• Improved animations
• Adds prefix animate__ to all classes, avoiding CSS class clashes
• Adds new utility classes
• Adds CSS custom properties support
• Leaner and up-to-date dependencies build system
• Updates demo-website layout
• Add and improve documentation and build system to the demo-website

This release patches the media-query prefers-reduced-motion according to the new specs and avoid some unexpected problems. Fixes #932 #934 #928.

• Modify animation speed/duration with fast, faster, slow, slower class names
• Modify delay with delay-1s, delay-2s, delay-3s class names
• Added support for reduced-motion media queries to disable animations for users who prefer reduced motion
• An added animation: heartBeat
• Documentation and dev dependencies have been updated
• Updated to Gulp 4

• New Animation: jackInTheBox
• Improved documentation
• Several bug fixes
• Better compatibility (no more transform: none)
• Added prettier (nice code formatting 💅)

By popular demand, animate.css’s dev environment is now a Gulp thing. This release updates the codebase to use Gulp and adds some minor changes to bring the release up to date with master.