Work in progress:
- Explain more features with examples in the documentation.

Probably:
- Printing for interactive reports
- Interactive account report
- Add support for risk documentation.

Maybe:
- Make vacations and shifts scenario specific.
- Limits for accounts.
- support for renewable resources
- Allocation selection by skill set.
- Add support for flexible rates (per task, per shift)
- Cleanup taskjuggler library API, so it can be used by other apps.
- Color support for tasks and resources.
- Limits for accounts.
