Ready for code review.

Issues that will take very little time, or have very small changes to the code.

This issue can't be worked on before some other issue is fixed.

This issue has to be broken down into several small issues.

This issue derives from another issue that has the "Breakdown" status.

Someone has started to work on this issue.

Bugs or unwanted behaviours.

Edits to documentation.

Enhancement of the project, for example upgrading versions.

Things that will make further development easier, for example restructuring code.