Add hiredis guard to INCR test

Signed-off-by: DTrejo <david.daniel.trejo@gmail.com>
Fix parser incorrect buffer skip for MULTI/EXEC transaction errors with WATCH.

Signed-off-by: DTrejo <david.daniel.trejo@gmail.com>
Parser should only catch parser errors and bubble the rest to the caller.

Signed-off-by: DTrejo <david.daniel.trejo@gmail.com>
In nested MULTIBULK buffers, correctly recurse on an incomplete read buffer.

Signed-off-by: DTrejo <david.daniel.trejo@gmail.com>