set quiz time
Merge branch 'master' of https://github.com/SamLau95/cs61as-quiz-system into staging
Merge pull request #107 from SamLau95/bugs

Bugs
Merge branch 'master' of heroku.com:cs61as-quizzes-staging
wat
replaced with rubyzip
wooohoo
wth
sigh
minor fixes
fixed some bugs
tests and stuff
fixed stats'