add names to handlertons
trans_need_2pc() macro


sql/examples/ha_archive.cc:
  add names to handlertons
sql/ha_berkeley.cc:
  add names to handlertons
sql/ha_innodb.cc:
  add names to handlertons
sql/ha_ndbcluster.cc:
  add names to handlertons
sql/handler.cc:
  print xa recovery progress
sql/handler.h:
  add names to handlertons
  trans_need_2pc() macro
sql/log.cc:
  add names to handlertons