Bound the sliding functionality with contrast panel component.
Show/hide the contrast adjuster at the page load, save and reset based on the model value rather than always hiding it when the adjuster is re-rendered.
Replaced the finalInit with an onCreate listener.
Strings for tooltips need to be also set in Contrast adjusters.
Removed some console print-outs.
Merge branch 'master' of https://github.com/chrispetsos/prefsEditors.git

Conflicts:
	src/shared/adjusters/js/ContrastAdjuster.js