Updated JSON and karma version

Fixes #5
Updated _buttons in template
Change JSON display title
Merge branch 'develop' into issue/#5

* develop:
  JSON schema for Adapt Origin
  Remove 'linked' behaviour - to be created separately

Conflicts:
	example.json
Merge branch 'issue/#5' into develop

* issue/#5:
  Change JSON display title
  Updated _buttons in template
  Updated JSON and karma version
Merge branch 'develop' of https://github.com/adaptlearning/adapt-contrib-confidenceSlider into develop

* 'develop' of https://github.com/adaptlearning/adapt-contrib-confidenceSlider:
  Merge branch 'issue/#5' into develop

Conflicts:
	example.json