Rename VN example css file
[VN] Only widget.min.js imports minified code
[VN] Add ‘customStyle’ config parameter to pass raw CSS
[VN] Fix image preloader path
Merge branch 'feature/voice-navigator' into feature/unify-widgets

Conflicts:
	dist/widgets/voiceNavigator/modal/modal.html
	dist/widgets/voiceNavigator/modal/modal.min.css
	dist/widgets/voiceNavigator/widget/widget.min.js
	tasks/voiceNavigator.js