Hi,

I have just pushed to github two small updates. These updates does not require database update so no new version.

• Chrome notification will hide itself then chats is accepted from back office. This way if there are multiple operators and some operator accepts a chat. For others this notification will hide automatically.
• Now I deny to delete a role if it's assigned to some group. Just to avoid messing up the system. There will be more like this updates in the future :)