Release Sprint 40

We just deployed an sprint 40 to production. This includes:

• Action: Persons can be assigned to subtasks. The assignee will be informed via email.
• Dashboard: We added a on-track table to the dashboard that shows how a company peforms against its targets. For holdings, this also shows all subsidiaries.
• Dashboard: We shipped a first iteration of the reduction path graph. It now splits actual from target data by the use of color. The lower part with mirror costs was removed. The bars have hard edges to be more visually comparable.
• Dashboard: Reduction tile can show an average if reduction path is not constant.