Redmine

Hi,

first, thank you for all work done on redmine, it's a great tool and i use it ervery day for project management.

I want to suggest a new feature about gantt view, it would be great to get 2 different view:
- preview task (with first date and due date)
- real view (when the task began and end date when the task will be closed)

So we can view difference between prevision and real project achievements.

Thanks for the attention and sorry for my poor english.