[Ml-yokadi] Using '_' as a shortcut to last task id

[Aurélien Gâteau]

David Faure a écrit :
> On Tuesday 01 September 2009, Aurélien Gâteau wrote:
>>   yokadi> t_add home Buy chocolate
>>   Added task 'Buy chocolate' (id=1069)
>>
>>   yokadi> t_edit _
>>
>> To edit last task.
>  
> +1
> Very useful!

Just pushed it (after a small bugfix)

Aurélien