commas for sharecounts and commentcounts

![image](https://cloud.githubusercontent.com/assets/960919/4825512/ec363c28-5f65-11e4-8f2b-02aafad127d4.png)

Interesting take on this problem. Personally I've done this in the past but splitting the string into an Array and using `%` modulo to insert a comma every three characters in the array apart form the last.