Merge changesets constituting 4.1.10a back into main tree, including release label.

include/my_global.h:
  Auto merged
isam/create.c:
  Auto merged
merge/mrg_create.c:
  Auto merged
myisammrg/myrg_create.c:
  Auto merged
mysys/mf_tempfile.c:
  Auto merged
sql/ha_myisam.cc:
  Auto merged
sql/sql_udf.cc:
  Auto merged
sql/table.cc:
  Auto merged
support-files/mysql.spec.sh:
  Auto merged
configure.in:
  No change to main source when integrating 4.1.10a.
myisam/mi_create.c:
  No change to main source when integrating 4.1.10a.
scripts/mysql_create_system_tables.sh:
  No change to main source when integrating 4.1.10a.
sql/mysql_priv.h:
  No change to main source when integrating 4.1.10a.
sql/mysqld.cc:
  No change to main source when integrating 4.1.10a.
sql/share/english/errmsg.txt:
  No change to main source when integrating 4.1.10a.