Added handlebars templating engine; converted quizpage to use handlebars
Merge branch 'master' of https://github.com/QuizHours/QuizHours
Corrected mismatched bracket error
Updated package.json to include dependency on handlebars
Added templating to quizbuilder
Quizzes can be modified locally
Classcode querying changed from query parameters to URL parameters
Security hole involving passing class password to client patched
Minor changes to question display panel CSS