Update models/answer.py

fixed newRating calculation
added rankresult link
Fix small page,
Fix active for questions bug
Fix get good booleans for questions
Merge branch 'groep7'
Merge branch 'groep7' of github.com:v1kko/SWE_2013_Groep2 into groep7

Conflicts:
	static/css/style.css
	templates/question_list_tbl.html