given an already connected MYSQL handle

mysql_real_connect() did not check whether the MYSQL connection
handler was already connected and connected again even if so. 
Now a CR_ALREADY_CONNECTED error is returned.

           says * for global allowed

The current behaviour of 'GRANT *' was changed as a part of the fix
for Bug#19022, Bug#17199 and Bug#18444. To avoid regression, we keep
the current behavior and update the documentation. 
Test case added to grant.test.

```-------------------------------------------------------
revno: 2476.657.210
committer: kostja@bodhi.(none)
timestamp: Tue 2007-12-04 18:27:44 +0300
message:
  Fix a potential linking error with libmysql and libmysqld on Windows:
  remove declarations of removed functions (Bug#31952)
```

-------------------------------------------------------

revno: 2476.785.24
committer: kostja@bodhi.(none)
timestamp: Tue 2007-10-16 20:19:00 +0400
message:
  Reflect a rename of a member in the client ABI (a compatible change).
----------------------------------------------------------
revno: 2476.423.26
committer: kostja@bodhi.(none)
timestamp: Tue 2007-10-16 20:12:37 +0400
message:
  Update the client ABI to reflect member rename
  (this is a backward-compatible change).
----------------------------------------------------------
revno: 2476.785.22
committer: kostja@bodhi.(none)
timestamp: Tue 2007-10-16 19:37:25 +0400
message:
  Remove some remains of support of 3.22 protocol. This was in fact dead code,
  since the option to talk 3.22 protocol was removed in 4.1 and there
  is no other protocol negotiation mechanism besides this option.

lowercasing table name".

In lower_case_table_names > 0 mode some queries to I_S left entries
with incorrect key in table definition cache. This wasted memory and
caused some of the further queries to I_S to produce stale results
in cases when table definition was changed by a DDL statement.
Also in combination with similar problem in CREATE TABLE (which also
has peeked into table definition cache using non-normalized key) this
issue led to to spurious ER_TABLE_EXISTS_ERROR errors when one tried
to create a table with the same name as a previously existing but
dropped table (assuming that table name contained characters in upper
case).

This problem occured due to fact that fill_schema_table_from_frm()
was not properly normalizing (lowercasing) database and table names
which it used for lookups in table definition cache.

This fix adds proper normalization to this function. It also solves
similar problem in CREATE TABLE's code by ensuring that it uses
properly normalized version of table name when it peeks into table
definition cache instead of non-normalized one.

Original revision in mysql-6.0-codebase is:

revno: 2617.31.14
committer: Konstantin Osipov <kostja@sun.com>
branch nick: mysql-6.0-runtime
timestamp: Sat 2009-03-28 11:42:55 +0300
message:
  Bug#35297 SHOW CREATE EVENT does not show the DEFINER:
  update test result after a merge from now.

Original revision is from mysql-6.0-codebase:

revno: 2617.23.13
committer: Alexander Nozdrin <alik@sun.com>
branch nick: 6.0-rt-bug34828
timestamp: Tue 2009-02-24 14:25:46 +0300
message:
  A patch for Bug#34828: OF is taken as OFF and a value of 0
  is set for variable SQL_notes.
  
  The problem was that partial match was allowed for keywords.
  
  A fix is to disable partial match and require full match.

Original revision is from mysql-6.0-codebase:

revno: 2630.3.1
committer: Alexander Nozdrin <alik@mysql.com>
branch nick: 6.0-rt-bug26704
timestamp: Thu 2008-05-29 21:04:06 +0400
message:
  A fix for Bug#26704: Failing DROP DATABASE brings
  mysql-client out of sync.

  The problem was that we changed current database w/o caring
  whether it was dropped successfully or not.

  The fix is not to change current database if we failed to drop it.

Backport of the fix for BUG#33730 "Full table scan instead selected partitions for query more than 10 partitions"
from 6.0, made in sergefp@mysql.com-20090205190644-q8632sniogedhtsu

(from revision konstantin@mysql.com-20080627154042-923m6lzk7z77lrgj ). This moves the slow part
(10 seconds over 13) into a separate big test.

2. Mark ndb, rpl_ndb test suites experimental.

Revision: 
2597.72.1 revid:sp1r-Reggie@core.-20080403153947-15243
removed instances of __NT__ from code. We now only build "NT" binaries