#9 Allow project to fill estimates to complete in days

[Gilles Scokart]

Providing estimation in hours is sometimes difficult for project that handle big (or average) tasks.
Indeed, if the task have +/- 5 days, giving an estimates in days give an accurency of 20%. If we use comma, we can easily have an ETC including half a day or a .25 which still give a accurency of 10% or 5%. For an individual task, such an accurency is more than enought.

The estimates in hours however make sense for project using items of +/- 1 days.

Ideally, this could be an option of an item type (or an option for the project).

NB: the actuals is an other beast. It might maybe make sense to have time reported in days, but there is much more project that would requires hours.