Produce an error when a field collation and charset are not compatible

SELECT latin1_expr COLLATE anpther_charset_collation

so that it has fetched the most from the master's binlog before the master
accidently dies. SCRUM task #756.

Added options reconnect/enable-reconnect/disable-reconnect/skip-reconnect to the 'mysql' command-line client.
Disabling can be safer when the server silently dies & restarts.
This is for SCRUM task #727.

into serg.mysql.com:/usr/home/serg/Abk/mysql-4.1

Added GeometryCollection type.

  Fix for coercibility of function

  Charset conversion function changes coercibility to IMPLICIT

  _charset cast changes coercibility to implicit
item_strfunc.cc:
  Collation cast change coercibility to EXPLICIT

   Coercibility, initial stage
item_func.h:
  Coercibility, initial stage

  Added new tests for better coverage of
  min/max optimization code.
func_group.test:
  Added new tests for better coverage of 
  min/max optimization code.
opt_sum.cc:
  Fixed wrong previous manual merge.
  Fixed bugs concerning fields used in min/max
  functions for which there are conditions of
  the form field=const.

Fixed bug in RAND() usage in mysqlbinlog

  set names binary  didn't work
  ,

  Two separate functions charset() and collatio()
item_strfunc.h:
  Two separate functions charset() and collation()

into hundin.mysql.fi:/home/igor/dev/mysql-4.1

  Now all text fields convert data into proper charset before storing

into hundin.mysql.fi:/home/igor/dev/mysql-4.1

  Added tests for extended max/min optimization
opt_sum.cc:
  Extended min/max optimization

  Insert constants with an explicit character set
ctype_many.result:
  Fix according test change

  rename len -> length, to look in common style

Don't define crc32 if we are not linking with gzip

regarded as unsigned longlongss, not as floats. This make these values work
similar to values between 10000000000000000000 and 18446744073709551615.

  Remove DEBUG_ASSERT if MySQL internally names a UNIQUE index as the PRIMARY KEY, but inside InnoDB there is no primary key for the table

  Add docs to store_lock()

Allow NULL geometry fields.