include/mysqld_error.h:
  added ER_DUPLICATED_VALUE_IN_TYPE
mysql-test/r/create.result:
  added test for bug #1427 "enum allows duplicate values in the list"
mysql-test/t/create.test:
  added test for bug #1427 "enum allows duplicate values in the list"
sql/share/czech/errmsg.txt:
  added message for ER_DUPLICATED_VALUE_IN_TYPE
sql/share/danish/errmsg.txt:
  added message for ER_DUPLICATED_VALUE_IN_TYPE
sql/share/dutch/errmsg.txt:
  added message for ER_DUPLICATED_VALUE_IN_TYPE
sql/share/english/errmsg.txt:
  added message for ER_DUPLICATED_VALUE_IN_TYPE
sql/share/estonian/errmsg.txt:
  added message for ER_DUPLICATED_VALUE_IN_TYPE
sql/share/french/errmsg.txt:
  added message for ER_DUPLICATED_VALUE_IN_TYPE
sql/share/german/errmsg.txt:
  added message for ER_DUPLICATED_VALUE_IN_TYPE
sql/share/greek/errmsg.txt:
  added message for ER_DUPLICATED_VALUE_IN_TYPE
sql/share/hungarian/errmsg.txt:
  added message for ER_DUPLICATED_VALUE_IN_TYPE
sql/share/italian/errmsg.txt:
  added message for ER_DUPLICATED_VALUE_IN_TYPE
sql/share/japanese/errmsg.txt:
  added message for ER_DUPLICATED_VALUE_IN_TYPE
sql/share/korean/errmsg.txt:
  added message for ER_DUPLICATED_VALUE_IN_TYPE
sql/share/norwegian-ny/errmsg.txt:
  added message for ER_DUPLICATED_VALUE_IN_TYPE
sql/share/norwegian/errmsg.txt:
  added message for ER_DUPLICATED_VALUE_IN_TYPE
sql/share/polish/errmsg.txt:
  added message for ER_DUPLICATED_VALUE_IN_TYPE
sql/share/portuguese/errmsg.txt:
  added message for ER_DUPLICATED_VALUE_IN_TYPE
sql/share/romanian/errmsg.txt:
  added message for ER_DUPLICATED_VALUE_IN_TYPE
sql/share/russian/errmsg.txt:
  added message for ER_DUPLICATED_VALUE_IN_TYPE
sql/share/serbian/errmsg.txt:
  added message for ER_DUPLICATED_VALUE_IN_TYPE
sql/share/slovak/errmsg.txt:
  added message for ER_DUPLICATED_VALUE_IN_TYPE
sql/share/spanish/errmsg.txt:
  added message for ER_DUPLICATED_VALUE_IN_TYPE
sql/share/swedish/errmsg.txt:
  added message for ER_DUPLICATED_VALUE_IN_TYPE
sql/share/ukrainian/errmsg.txt:
  added message for ER_DUPLICATED_VALUE_IN_TYPE
sql/sql_table.cc:
  added function check_duplicates_in_interval and 
  calling it from mysql_create_table for enum and set