Add content provider and table layout for Cars
Add activity for car list viewing
Add interface for car adding and editing
Add context menu for car in the cars list (edit and delete options)
Add content provider and table layout for Categories of expenses
Add editing for Categories of expenses
Add categories list into main view
Add content provider and table layout for Fuel
Add resources for fuel action
Add content provider and table layout for Expenses
Add DatePicker control
Add interface for Fuel