Have you looked into using Trello at all?
I use Brackets.io and their dev team have a public trello board, you can see bugs & features moving through the system, who is working on what etc, its great for your own project management but also really good when its public facing. This is the Brackets board so you can see what it looks like https://trello.com/b/LCDud1Nd/brackets
I use Brackets.io and their dev team have a public trello board, you can see bugs & features moving through the system, who is working on what etc, its great for your own project management but also really good when its public facing. This is the Brackets board so you can see what it looks like https://trello.com/b/LCDud1Nd/brackets