add quiz specs
add quiz - blank submission specs fail
add question model
added answer model
lots of confusing
changed correct answers to fields for
Fix correct? attribute & validations on Answer
Merge pull request #34 from hchood/add_quizzes

Fix correct? attribute & validations on Answer
rename correct? column to correct
changed correct? methods to correct
remove save and open page from spec
Merge pull request #36 from alpha-tango/add_quizzes

Add quizzes