Clean up and add wires of prerequisite playing
Merge branch '7.x-1.x' into feature/454-play-prerequisites-during-screening-automatically
Implement playing through prerequisite steps
Automatically play all prerequisites if _play_prerequisites get parameter is passed
Add parameters of the prerequisites

Refactored attaching data attributes to be more readable.
Fix clicking on "Next" button between two walkthroughs
Merge branch '7.x-1.x' into feature/454-play-prerequisites-during-screening-automatically
Merge pull request #23 from Coornail/feature/454-play-prerequisites-during-screening-automatically

Feature/454 play prerequisites during screening automatically