Removed some warnings reported by valgrind

After merge fixes.
Now code compiles, but there is still some valgrind warnings that needs to be fixed


myisam/mi_rnext_same.c:
  handle case where rtree_find_next() returns an error
  (assume this means that there was no more keys)
myisam/rt_index.c:
  Code cleanup
mysql-test/r/func_crypt.result:
  Update results
mysql-test/r/func_group.result:
  Update results
mysql-test/r/null_key.result:
  Update results
mysql-test/r/order_by.result:
  Update results
mysql-test/r/query_cache.result:
  Update results
mysql-test/r/range.result:
  Update results
mysql-test/r/rpl_trunc_binlog.result:
  Update results
mysql-test/t/fulltext.test:
  Fix error numbers
mysql-test/t/func_crypt.test:
  Fixed test for 4.1
mysql-test/t/range.test:
  Moved tests to be in sync with 4.0
mysys/test_charset.c:
  Removed acccess to non existing functions
sql-common/client.c:
  Merge fix
sql/item_strfunc.cc:
  Simple code cleanup
  Don't call ->c_ptr() when you don't need a 0 terminated string
  (Causes warnings from valgrind)
sql/log_event.cc:
  After merge fixes
sql/protocol.cc:
  Change default catalog name to 'def'
sql/spatial.cc:
  Code cleanup
sql/sql_class.cc:
  After merge fixes
sql/time.cc:
  Ensure that time object is cleared on error
sql/unireg.cc:
  Removed warning reported by valgrind

mysql-test/r/null_key.result

@@ -153,12 +153,12 @@ a	b
 7	NULL
 explain select * from t1 where (a = 7 or a is null) and (b=7 or b is null);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t1	ref_or_null	a,b	a	5	const	4	Using where; Using index
+1	SIMPLE	t1	range	a,b	a	10	NULL	3	Using where; Using index
 select * from t1 where (a = 7 or a is null) and (b=7 or b is null);
 a	b
+NULL	7
 7	NULL
 7	7
-NULL	7
 explain select * from t1 where (a = 7 or a is null) and (a = 7 or a is null);
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t1	ref_or_null	a	a	5	const	5	Using where; Using index