Carousel removed except for v3

Due to a merge mess up, this got added back in, so removing it again.
Add event to sortable so we know when order change

For the carousel we need to know when the sortable order of the slides changes. So adding an event to the sortable control  that we can tie into.
Carousel add repositionTile function

In grid view slides can be rearranged - when that happens we must also rearrange the tiles in the carousel. The new repositionTile function for the carousel object will allow for that.
More carousel changes for repeatables
Carousel slideshow add edit functionality

Clicking "Edit" button under the slide in grid view switches to gallery view and loads the edit form under the carousel.