Merge pull request #8 from Caf131/master

Pull latest into my branch...
Merge pull request #9 from Caf131/master

Pull latest into my branch...
Question Controller and json properties added
JSON property values standardized
Merge pull request #10 from Caf131/master

Latest changes
QuestionDAO & CommentDAO
Merge pull request #37 from deluda/master

Identifiers standardized; QuestionDAO.java and CommentDAO.java added