Fix style issue,Fix  Logged in users can't ask question

Fix style issue
If Allow non logged in (but still they need to signup or login) is not check logged in users can't ask questions
Alex, you see `current_user_can('ap_new_question')` this check for logged in user and also if user can ask. if we add `is_user_logged_in()` then it will allow every loggedin user to ask question... so in case if a user have not permission to ask question then still it will show ask form, like blocked user..