Reorder the init process to improve perceived performance.

Send requests for backlog after processing the BufferViewConfig
data, as that is the last init data received.  Then, the init
can be considered complete after the BufferViewConfig data is
received, which allows for the buffer list to be displayed earlier
for a perceived speed improvement of the init process.  The backlog
is then handled by the normal post-init means.  Additionally, this
means that the special case for handling backlog during init can
be removed as it is no longer needed.