Have this information up to date is required by the paging plugin.

the new handler onInit is only execute once.

Load ten record when the paginh plugin is there.

Put in place the standard mechanism for store.
Load the store when it is needed.

Polish the comments here and there.

It is fill by the controller get_api.

Raise an error is absent.

Add listener to cath exception on the store, since in that case  the store listener is mute !