Fixed: support for autoprefixer 5.2 (1.5.2)

Close MoOx#131

Fixed: CLI `--watch` doesn't make some duplicate rebuild anymore. (1.…

…3.1)

Merge pull request MoOx#95 from cssnext/rgba-fallback

Added: color-rgba-fallback PostCSS Plugin

Fixed: --watch doesn't output console.log() related to watcherd/unwat…

…ched files anymore (1.2.3)

Fixed: remove some deprecation notice related to postcss 4.1

Ref postcss/postcss#272

Changed: higher timeout for watch test

In order to avoid
```
Error: ENOENT, no such file or directory
'test/fixtures/cli.output--watch-import.css’
```