Should features add themself to versions ?

[danieleTrimarchi]

Currently we do define feats, then add them to a version.
Features could have version in the args, so that they can add themself directly to the version :

class Feature(object):

    def __init__(
        self,
        featName: str,
        remainingEffort: int,
        version : Version = None,
        assignee: DevGroup.DevBase = None,
        percentageLoad: numbers.Number = 0,
        startDate: date = datetime.today().date(),       
    ):

   ...

  if version is not None : 
      version.addFeat(self)
   

Note the condition if version is not None, required to assure that Features (actually : we should rename them into Taks) can also live standalone