As an user, I can add a task with an name and an date in order to remeber it for the next time I connect
The rules for adding a task are
The name is mandatory
The date is optionnal
The default date is the day after
Given, we are the 11/11/2011 and the app is running and the database is empty and we clicked on the plus button When we add a task named : This is my task tomorrow Then the tasks should be
