title: Voting or rating post and member ranking in phpbb3
body: <p>I chose phpbb3 for my forum. I want my user's post to be voted/rated by other members of my forum and also a user's reputation(ranking) should be changed according to his interaction with posts. Are there any built in features for these two tasks? If not what is the possibility to change the code according to my requirements? Any help is appreciated.</p>