3.0.0

• Added: compatibility with postcss v6.x
• Updated dependencies

2.0.1

• Bump color dependency version
  (postcss-cssnext/#327 - @wtgtybhertgeghgtwtg)

2.0.0

• Added: compatibility with postcss v5.x
• Removed: compatiblity with postcss v4.x

1.2.0

• Added: compatibility with postcss v4.1.x
  (#4)