Implement innobase_very_fast_shutdown and innobase_start_trx_and_assign_read_view(); these were requested by Guilhem


sql/ha_innodb.h:
  Implement innobase_very_fast_shutdown and innobase_start_trx_and_assign_read_view(); these were requested by Guilhem
sql/ha_innodb.cc:
  Implement innobase_very_fast_shutdown and innobase_start_trx_and_assign_read_view(); these were requested by Guilhem
innobase/include/srv0srv.h:
  Implement innobase_very_fast_shutdown and innobase_start_trx_and_assign_read_view(); these were requested by Guilhem
innobase/log/log0log.c:
  Implement innobase_very_fast_shutdown and innobase_start_trx_and_assign_read_view(); these were requested by Guilhem
innobase/srv/srv0srv.c:
  Implement innobase_very_fast_shutdown and innobase_start_trx_and_assign_read_view(); these were requested by Guilhem