Merge pull request #10 from MCautreels/master

History Support
Load Correct Questions Fix #11
Better layout
added back button
added a 'results' class to the code element, to clarify code examples better. Modified question 1 & 2 in the vars series to utilise this class.
Added .gitignore to ignore IntelliJ project files
Added History Support (#8 resolve)
Bug fix
Load Correct Questions Fix #11
Cleanup Questions
Merge branch 'gh-pages'
Update variabele vragen
Update if else questions
Focus editor Fix #12
Minor UI Changes
Save Progress Fix #6
Update questions