Selectors clean-up: contextual module

use .on()

not much else.

BONUS: Investigate if adding basic events and detach makes sense, as described in #1763812: [META] Provide complete attach/detach with basic events

Definately could use detach and events.

tag

little clean-up

We cleaned up the .trigger, .on and all a while back. If you look closely, the blur and focus calls are methods from the model, not jQuery things.

And the patch has two typos:
model.close().trigge('blur');
this.model.triger('focus');

- rename Storage to sessionStorage, more easier to read (sometimes, we use localStorage)

Re-rolled!

Already been cleaned in another issue (don't know which one, just know it's fine now).

Left over changes do not improve things much.