Implement basic logging for successful walkthrough playing
Split logger into its own object
Merge branch 'master' into feature/466-log-walkthrough-play-result

Conflicts:
	compiled.js
	src/javascript/walkthrough/executor.js
Merge branch 'master' into feature/466-log-walkthrough-play-result

Conflicts:
	compiled.js
	walkthrough.css
Send walkthrough parameters to the logger as well
Merge pull request #31 from Coornail/feature/466-log-walkthrough-play-result

Log walkthrough play result