2.1.0: Pug-php 3 compatibility

Pug-php 3 compatibility

Version 2.0.1

Optimize for production export

Version 2.0.0

• Try to install node stylus package automatically and use it if it succeed
• Drop pug-to-stylus direct variable injection
• Drop pug-php 1.x support

Rename to Pug

1.1.0

Rename to Pug