Fixed bug in end space handle for WHERE text_column="constant"


heap/hp_hash.c:
  Optimzations (no change of logic)
libmysql/libmysql.c:
  Added missing casts (portability fix)
myisam/mi_key.c:
  Changed macro to take arguments and not depend on local variables
  Simple indentation fixes ?
mysql-test/r/connect.result:
  Added test for setting empty password
mysql-test/r/create_select_tmp.result:
  TYPE -> ENGINE
mysql-test/r/ctype_utf8.result:
  Combine drop's
mysql-test/r/endspace.result:
  Added more tests to test end space behaviour
mysql-test/r/having.result:
  Added missing DROP TABLE
mysql-test/r/type_blob.result:
  Added more tests to ensure that fix for BLOB usage is correct
mysql-test/r/type_timestamp.result:
  Add test from 4.0
mysql-test/t/connect.test:
  Added test for setting empty password
mysql-test/t/create_select_tmp.test:
  TYPE -> ENGINE
mysql-test/t/ctype_utf8.test:
  Combine drop's
mysql-test/t/endspace.test:
  Added more tests to test end space behaviour
mysql-test/t/having.test:
  Added missing DROP TABLE
mysql-test/t/type_blob.test:
  Added more tests to ensure that fix for BLOB usage is correct
mysql-test/t/type_timestamp.test:
  Add test from 4.0
sql/field.cc:
  Removed not used variable
  Portability fix (cast)
  Simplified Field_str::double()
  Simple indentation cleanups
sql/field.h:
  Removed not needed class variable
sql/item_cmpfunc.cc:
  Indentation fix
sql/item_strfunc.cc:
  Use on stack variable for Item_str_func::val() instead of str_value.
  This makes it safe to use str_value inside the Item's val function.
  Cleaned up LEFT() usage, thanks to the above change
sql/item_sum.cc:
  Indentation cleanups
sql/protocol.cc:
  Added missing cast
sql/sql_acl.cc:
  Indentatin cleanups.
  Added missing cast
  Simple optimization of get_sort()
sql/sql_select.cc:
  Don't use 'ref' to search on text field that is not of type BINARY (use 'range' instead).
  The reson is that for 'ref' we use 'index_next_same' to read the next possible row. 
  For text fields, rows in a ref may not come in order, like for 'x', 'x\t' 'x ' (stored in this order) which causes a search for 'column='x ' to fail
sql/tztime.cc:
  Simple cleanup
strings/ctype-bin.c:
  Comment fixes
strings/ctype-mb.c:
  Changed variable names for arguments