Compassion projects

Adds German translation to child descriptions.
Adds Project information retrieval.
You're right, it is better to have it like that if the field has to be translated. However for this case, we will retrieve name of small cities that probably even don't have translations. So I think that for this special case, we don't need translations and therefore we can convert it to a simple 'char' field type.

To answer your questions :
- Yes we can rename the class to better fit its usage (We will think of something or tell me if you find one)
- I think both options are defendable. But since we have only many2many relations, let's keep many2many so that we don't have to wonder for each case, and to keep consistency for the view.