Split handler->option_flag() to handler->table_flags() and handler->index_flags()


Docs/manual.texi:
  Updated standard binary options
include/my_base.h:
  Update for BTREE keys in HEAP tables
libmysql/net.c:
  merge with net_serv.cc
mysql-test/r/func_misc.result:
  Update for new behaviour of inet_ntoa
sql/field.cc:
  Update for BTREE keys in HEAP tables
sql/field.h:
  Update for BTREE keys in HEAP tables
sql/filesort.cc:
  Update for BTREE keys in HEAP tables
sql/ha_berkeley.h:
  Update for BTREE keys in HEAP tables
sql/ha_heap.h:
  Update for BTREE keys in HEAP tables
sql/ha_innodb.h:
  Update for BTREE keys in HEAP tables
sql/ha_isam.cc:
  Update for BTREE keys in HEAP tables
sql/ha_isam.h:
  Update for BTREE keys in HEAP tables
sql/ha_isammrg.h:
  Update for BTREE keys in HEAP tables
sql/ha_myisam.cc:
  Update for BTREE keys in HEAP tables
sql/ha_myisam.h:
  Update for BTREE keys in HEAP tables
sql/ha_myisammrg.h:
  Update for BTREE keys in HEAP tables
sql/handler.cc:
  Update for BTREE keys in HEAP tables
sql/handler.h:
  Update for BTREE keys in HEAP tables
sql/log.cc:
  Update for BTREE keys in HEAP tables
sql/net_serv.cc:
  Update for BTREE keys in HEAP tables
sql/opt_range.cc:
  Update for BTREE keys in HEAP tables
sql/opt_sum.cc:
  Update for BTREE keys in HEAP tables
sql/records.cc:
  Update for BTREE keys in HEAP tables
sql/sql_class.h:
  Update for BTREE keys in HEAP tables
sql/sql_handler.cc:
  Update for BTREE keys in HEAP tables
sql/sql_insert.cc:
  Update for BTREE keys in HEAP tables
sql/sql_select.cc:
  Update for BTREE keys in HEAP tables
sql/sql_show.cc:
  Update for BTREE keys in HEAP tables
sql/sql_table.cc:
  Update for BTREE keys in HEAP tables
sql/structs.h:
  Update for BTREE keys in HEAP tables
sql/table.cc:
  Update for BTREE keys in HEAP tables
sql/unireg.cc:
  Update for BTREE keys in HEAP tables