variables are changed
Implement List<> methods (may be not in the best way)
added deleteList method
tests are written and tested!
Merge remote-tracking branch 'origin/master'

Conflicts:
	src/main/java/examination/DataLayer/dao/QuestionDAOImpl.java
variables are changed
Implement List<> methods (may be not in the best way)
added deleteList method
tests are written and tested!