Backport from 6.0

Changed error message to show that it is partitioning
that does not support foreign keys yet.

Changed spelling from British english to American english.

mysql-test/r/partition.result:
  Bug#36001: Partitions: spelling and using some error messages
  
  Backport from 6.0
  
  Changed spelling from British english to American english.
mysql-test/r/partition_mgm_err.result:
  Bug#36001: Partitions: spelling and using some error messages
  
  Backport from 6.0
  
  Changed spelling from British english to American english.
mysql-test/t/partition.test:
  Bug#36001: Partitions: spelling and using some error messages
  
  Backport from 6.0
  
  Added test for verifying error message
sql/share/errmsg.txt:
  Bug#36001: Partitions: spelling and using some error messages
  
  Backport from 6.0
  
  Changed spelling from British english to American english.
sql/sql_table.cc:
  Bug#36001: Partitions: spelling and using some error messages
  
  Backport from 6.0
  
  Using a better error message.

      
Removed the misleading "NOTE:" from the \h command. 

client/mysql.cc:
  Bug #26724: removed the misleading note from the \h command

replace wild_case_compare with my_wildcmp which is multibyte safe function


mysql-test/r/lowercase_utf8.result:
  test result
mysql-test/t/lowercase_utf8-master.opt:
  test case
mysql-test/t/lowercase_utf8.test:
  test case
sql/sql_show.cc:
  replace wild_case_compare with my_wildcmp which is multibyte safe function

mysql-test/t/gis.test:
  IA64 gcc backend lacks -fno-fused-madd option, so we have to adjust results.

mysql-test/r/type_float.result:
  Added missing DROP TABLE.

mysql-test/r/parser.result:
  Take additional precision into account.

mysql-test/suite/funcs_1/r/memory_func_view.result:
  Take additional precision into account.
mysql-test/suite/funcs_1/r/memory_views.result:
  Take additional precision into account.
mysql-test/suite/funcs_1/r/myisam_func_view.result:
  Take additional precision into account.
mysql-test/suite/funcs_1/r/myisam_views.result:
  Take additional precision into account.

mysql-test/r/bdb_gis.result:
  Take additional precision into account.
mysql-test/r/ndb_gis.result:
  Take additional precision into account.
mysql-test/t/type_float.test:
  Added missing DROP TABLE.

stack reservation too small

Problem: some tests fail on HP-UX due to insufficient stack reservation.

Fix: increase stack reservation.


sql/mysql_priv.h:
  Fix for bug#21476: stack overflow crashes server; error-message
  stack reservation too small
    - raised STACK_MIN_SIZE to pass execution_constants.test on HP-UX.

Cleaned up SQL code in the test.
Needed to move the FLUSH TABLES statement prior to the DROP TABLE t1 to prevent a warning of
Table open on delete and a test fail.

Dirty close tricky does not work on Windows.

mysql-test/r/query_cache_notembedded.result:
  Remove test case result.
mysql-test/t/query_cache_notembedded.test:
  Remove test case.

Bug#38435 - LONG Microseconds cause MySQL to fail a CAST to DATETIME or DATE

Parsing of optional microsecond part in datetime did not
fail gracefully when field width was larger than the allowed
six places.

Now handles up to the correct six places, and disregards
any extra digits without messing up what we've already got.

mysql-test/r/type_datetime.result:
  show graceful handling of overly long microsecond parts
  (correct truncation).
mysql-test/t/type_datetime.test:
  show graceful handling of overly long microsecond parts
  (correct truncation).
sql-common/my_time.c:
  Special case for time-parsing: for microsecond part,
  leading zeroes are actually meaningful! Also, don't
  break the entire date on more than the allowed six
  digits in microsecond part, just truncate the extra
  digits.

testcase checks are made.
      
MTR spawns mysqltest to run check-testcase test before and after each testcase 
it runs. It can also run check-warnings using mysqltest. Since it happened on PB 
that these checks hanged, this patch provides additional feedback to help 
investigating such failures:
      
- mysqltest is modified to give feedback about main steps in execution of a 
testcase if run in verbose mode (including connection to the server),
     
- MTR is modified to run mysqltest in verbose mode when doing check-testcase or 
check-warnings. The diagnostic output from mysqltest is preserved so that it is 
saved upon test failure.

client/mysqltest.cc:
  Add verbose messages informing about main steps in execution of a testcase.
mysql-test/mysql-test-run.pl:
  - When doing check-testcase or check-warnings run mysqltest in verbose mode.
  - Do not delete the mysqltest's error log if errors are detected during these