Merge branch 'develop'

* develop:
  Capitalise mcq variable name
Merge branch 'develop'

* develop:
  Added "_layout" attribute to example
  Add questionView preRender invokation
Merge branch 'master' of https://github.com/adaptlearning/adapt-contrib-mcq into develop

* 'master' of https://github.com/adaptlearning/adapt-contrib-mcq: