mark Quest Owner in quest participants box on party page

On the party page, in the quest participants box, this change adds an asterisk to the name of the person who started the quest. This works both during the invitation stage and after the quest has started.

Requires https://github.com/HabitRPG/habitrpg-shared/pull/296 to be merged.

![screen shot 2014-09-02 at 5 24 36 pm](https://cloud.githubusercontent.com/assets/1495809/4115249/3f24b9a0-3275-11e4-8b5e-ff3b1139d74b.png)