Add the property table.
Design the handler clone and polish the other one.
first version with all basic functionalities.

Require to distinguish insert from update.

Add the constant App.DB
Add two new functions App.longFieldName and App.fieldString

Rename handler: addItem, cloneItems,...
Design the addItem and removeItems handler.

One file per class.
Modify the test page accordingly.

Modif few method is_blabla_valid --> is_blabla_in_db and modify the code accordingly.

Prefer appbase.js.

The current implementation works.

Re-design the NewEntryPanel
Add ComboBox, JsonStore, AjaxRequest.

Imporve the naming schem using applayout.html, appbase.js,....

Define private and public methods.
Redesign some _is_.. method.
Add the insert method.

Finalize the select service.
Polish the documentation.

Polish documentation.

Polish documentation.