Moving towards support of multiple quizzes.
All slim routes have changed to use a /quiz/:id param for actual quiz-taking urls.
Templates moved inside quiz subfolder.
getRootURI() passed to all views for consistent css/js file linking.
Removed UserInterface and User class as unnecessary.
Lots of code changes to Quiz class - removed needless calls from constructor.
Some error checking implemented regarding quiz ids.
More error checking required and should make use of slim conditionals.
App index file not working yet as I need to create a new overall index template file listing all available quizzes.
Multiple quizzes enabled.
Change of Slim routes (adding trailing slash)
Altered storing of wrong/correct answers in Session array.
Lots of bug fixes.
Index page now lists all available quizzes.
Changes to all db queries to include quiz id.
Removed 'verdicts' at end of each quiz.
Added new 'num' column in questions and answers tables to store order of quiz questions.
Added Simple class to retrieve basic app info/stats.
Changed logic on results page(displaying correct/wrong etc)
Created fresh export of simple-quiz.sql
Removed forgotten debug code