Updating Olapic tag

Following changes have been made to the Olapic tag - carousel type widget 
- [x] Fix `refkey` attribute
	- Addresses the issue where Olapic widget does not pull in product specific content
- [x] Add `data-mode` attribute support
	- Addresses the issue where `live` mode was not supported in the previous code.
- [x] Rename `Carousel Widget` to `Widget Instance` 
	- Techincally, the carousel widget tag could be used for other widget instances as well. This addresses improving semantics across two platforms.