Make use of latest $.ui.inputextender updates in snakview value variation

Using $.ui.inputextender.redrawVisibleExtensions() instead of triggering global event with jQuery.

This REQUIRES I23cded705ce4954644e4e5ea58c9119f2a1e8a3e in the DataValues repo.

Change-Id: I8fae7074dbea1a28246045c9eb2e03f33c400ed3
Merge "Make use of latest $.ui.inputextender updates in snakview value variation"