Self muted/deafened message seperated into self muted, self unmuted, self deafened, self undeafened.

Grants an audio feedback what mute/deaf-state is active. (global keys)

Moved the new message-events to the back of the message-list to prevent old config files becoming imcompatible.

Added an array that allows to choose the order of the messages in the settingsscreen
Use enum type and constants instead of integer indices.

Self mute/deafen separation patch used documented integer array.
Replaced by more readable and self-documenting array of enum.
Translation update

Updating 'mumble_en.ts'...
    Found 1574 source text(s) (5 new and 1569 already existing)
    Removed 2 obsolete entries