Implement the accounts module
Use common class to handle data
Implement common save operation
Simplify loading data
Simplify removal
Adapt debts to use the new common system
Unify insertion of data
Fix copyright date
Basic expense module
Display the date of the expenses
Store only the date, not the complete time
Add secondary to set the date of the expense
By default filter on the date
Add command to display all expenses
Add a way to show subset of the expenses
Add simple message if nothing to display