Mer: Fix deadlock on auto reseting VM after connection error

Also fix related debug message.

Signed-off-by: Martin Kampas <martin.kampas@jolla.com>
Mer: Improve user dialog on auto reseting VM after error

Do not ask "Close VM?" when "Connect" is requested after error.

Signed-off-by: Martin Kampas <martin.kampas@jolla.com>