Merge gleb.loc:/home/uchum/work/bk/5.0-opt

into  gleb.loc:/home/uchum/work/bk/5.1-opt


mysql-test/t/create.test:
  Auto merged
sql/field.cc:
  Auto merged
sql/sql_base.cc:
  Auto merged
sql/table.cc:
  Auto merged
mysql-test/r/create.result:
  Merge with 5.0-opt.