Clean modules configuration

Properties

clean (object): Cannot contain additional properties.
- docker (boolean): Clean the docker images made from feature branches and pull requests. Default: true.
- git (array)
  - Items (object): Clean a folder from a branch. Cannot contain additional properties.
    - on-type (string): feature_branch, pull_request or all. Must be one of: "feature_branch", "pull_request", or "all". Default: "all".
    - branch (string): The branch on witch one the folder will be cleaned. Default: "gh-pages".
    - folder (string): The folder to be cleaned, can contains {name}, that will be replaced with the branch name or pull request number. Default: "{name}".
    - amend (boolean): If true, the commit will be amended instead of creating a new one. Default: false.