Merge origin/master

Conflicts:
	nbproject/project.properties
	src/melt/DAO/MCQ_DAO.java
	src/melt/DAO/QuestionDAO.java
	src/melt/DAO/Question_DAO.java
	src/melt/Main.java
	src/melt/Model/MCQ.java
	src/melt/Model/Question.java
	src/melt/Util/SQLHelper.java
	src/melt/View/AddExam.java
	src/melt/View/AddSection.java
	src/melt/View/ChooseQuestionsPanel.java
	src/melt/View/Exam.java
	src/melt/View/ExamOverview.java
	src/melt/View/MCQPanel.java
	src/melt/View/SectionPanel.java
	src/melt/View/SettingExam.java
	src/melt/View/SubsectionPanel.java