Add methods to get the money associated to Person and add the data to the Person object
Check people and money before adding
Add method to calculate total dette and credit
fix: call the correct index of cursor
Update listview display by adding total credit and debt
Change the listview adapter, now implements CursorAdapter
Merge the credit and dette tables
Refresh the list when displaying it
Synchronise time display between button and datepicker
Change the date format to string
Delete entry when clicked on the listview
Delete item on click on an item from the listview
Add a listview on the home page
Add a listview inside the add fragment
The main activity displays a fragment
Add fragment dynamically to main activity
Add footer which will allow to add entry
When clicking on footer, switch fragment
Remove listview from AddFragment
go back to main fragment after adding or canceling