Merge pull request scrapy#804 from darkrho/issue-560

Updated input/ouput processor example according to scrapy#560.

Bump version: 0.25.0 → 0.25.1

version 0.25.0

Bump version: 0.24.1 → 0.24.2

Bump version: 0.24.0 → 0.24.1

Bump version: 0.23.0 → 0.24.0

version 0.22.2

version 0.22.1

version 0.23.0

version 0.22.0