* Extend web_widget_slick widget to open web_widget_darkroom modal
and update selected carousel image on close
* Override _slickRender method from web_widget_slick to add data
attribute w/ record id
* Change cursor to pointer on slickroom images
* Disable features in read-only mode
* Keep default cursor
* Prevent modal from opening
* Add tests
[IMP] web_widget_slickroom: Make requested changes
* Use jquery .data instead of .attr for image record IDs
* Add explicit img selector when finding images by record ID
* Remove svg version of icon
Brenton Hughes