When no accounts are enabled, the 'New blank message' and 'Join
Groupchat' actions cause Psi to crash. I've attached a patch that
fixes this, by disabling these options when no accounts are enabled.
They are now instances of a new IconAction subclass called
AccountAction, which is subscribed to PsiCon::accountCountChanged(). A
more elegant fix would involve making these two options behave the
same way as 'Add a contact' and 'Service Discovery', which currently
are MAction instances.
Sander