Enhance bootstrap theme for List.
Fix issue reported by jshint on PageableList.
Removed templateString property on List renderers.
List samples and tests updated so that custom renderer use external
templates.
StarRating update:
now using a div per half star instead of a div per star;
now inheriting from FormValueWidget
(https://github.com/ibm-js/deliteful/issues/145);
now using font icons instead of image stripes to render stars;
not setting a default aria-label attribute anymore;
user documentation updated to use the default documentation template.
documented limitation of the widget when using Apple VoiceOver assistive
technology.
Added a star rating sample that uses an image sprite to render its
stars.
Fix weird focus outline on google chrome
(https://github.com/ibm-js/deliteful/issues/156)
changes corresponding to delite updates to KeyNav. Thanks @wkeese.
fix jshint issue
Fix #163: ViewStack is broken since commit 79f4285c2e6f0869bd8b24e3ec947aafb66e708b