removed "of is null" if it is possible
  (this cset should be SCRUM related, but not approved as scrum task yet)

TMP_TABLE_PARAM.
This involved moving things around in include files.
All tests, including the ones with Valgrind passed.

Don't create temporary objects with no table name

fixed destroing not well constructed analize object
fixed wrong detection of unions in derived tables

UNION's bug fixes and code clean-up

Portability fixes
Added new client function: mysql_get_server_version()
New server help code (From Victor Vagin)
Fixed wrong usage of binary()
Disabled RTREE usage for now.

fixed length of fields created in fubselect
fixed resolving fields of reduced in derived table subselect

after merge fix of 577 task (SCRUM, pre commit to be able to merge with static tables optimization fix)
fixed derived tables with subselect inside

fixed memory leacks

fixed bug of calling setup_fields without correct lex->current_select pointer in mysql_derived
more correct creation of reference in Item_field::fix_field

I still have to make a test case for :

UPDATE from sub-select with derived table

Scrum task !!!!!

Added THD to add_to_xxx_list() functions for faster parsing.

I am pushing now, because :

* I have a fix for crashing bug
* Sanja will destroy my changes in sub-select test ... ;)

doing it in sql_yacc.yy does not work
this commit contains fixes for other tests
there are fixes in subselect test which will have to be changed
once fix_fields is fixed to work with aliased derived tables

within derived tables within ......

 - fixed switching from heap to MyISAM table
 - fixed error handler

to resolve derived table.

Will make a test case for this quite soon.

a corresponding test case....

resulting code cleanup in our main loop.

onversion with check

and a bug fix for derived tables

Warning handling and initial prepared statement handling (last not complete yet)
Changed a lot of functions that returned 0/1 to my_bool type.
GRANT handling now uses read/write locks instead of mutex
Change basic net functions to use THD instead of NET
(needed for 4.1 protocol)
Use my_sprintf instead of sprintf() + strlen()
Added alloc_query() to be able to chare query initialization code with
prepared statements.
Cleanup handling of SHOW COUNT(*) WARNINGS and SELECT LAST_INSERT_ID()

Note that the following test fails (will be fixed ASAP):
sub_select, union, rpl_rotate_logs and rpl_mystery22

fixed bug in mysql-test/create-test-result
fixed bug in union-subselect engine

new error handling
Item_ref bug fixed