- init renamed to preRender following framework update
- z-index issue on pop-up fixed
Removing redundant setting
Merge pull request #7 from adaptlearning/rework

Minor fix and updated function call
Merge branch 'master' of https://github.com/adaptlearning/adapt-contrib-hotgraphic into develop

* 'master' of https://github.com/adaptlearning/adapt-contrib-hotgraphic:
  Squashed commit of the following:
Merge branch 'develop' of https://github.com/adaptlearning/adapt-contrib-hotgraphic into develop

* 'develop' of https://github.com/adaptlearning/adapt-contrib-hotgraphic:
  Squashed commit of the following:
Merge branch 'develop' of https://github.com/adaptlearning/adapt-contrib-hotgraphic into develop

* 'develop' of https://github.com/adaptlearning/adapt-contrib-hotgraphic:
  Updated visited logic
  z-index fix
Merge branch 'develop' of https://github.com/adaptlearning/adapt-contrib-hotgraphic into develop

* 'develop' of https://github.com/adaptlearning/adapt-contrib-hotgraphic:
  Updated example.json
  Fix for issue #8 - switch hotgraphic to narrative on mobile
Merge branch 'develop' of https://github.com/adaptlearning/adapt-contrib-hotgraphic into develop

* 'develop' of https://github.com/adaptlearning/adapt-contrib-hotgraphic:
  Fixes #16