+ Can be used for setting client size and closing the client.

Will expand on by sending client alerts to the tray.

Updated to push message notifactions to the toolbar

Preview image:

Added setting to enable/disable message popups

Added functionality

+ updated popup message and translation
+ Double clicking tray icon will now bring up the app/minimize it
+ can now be alerted of mentions
+ added setting to set if you want mentions on desktop
+ clicking mention message will take you to the main chat
+ added translations for icon menu
+ removed maximize/minimize/restore from menu, not needed.

Added disconnect

+ Disconnects any previous message slots/signals from the system icon
message bubble

Relocated to the chat settings tab.

You can now click on a username in the main chat to add a "@username"
tag to the chat. Makes communication with other users using tags faster.

Users can now clear the chat in the main lobby. This removes unwanted
text and clears up memory when the client has been open a long time.

As suggest by Daenyth in #185

added option to ignore unregistered users in chat; switched UserList data storage to QMap to speed up lookups; issue #28 fixed