If the expression for a virtual column of table contained datetime
comparison then the execution of the second query that used this
virtual column caused a crash. It happened because the execution
of the first query that used this virtual column inserted a cached
item into the expression tree. The cached tree was allocated in
the statement memory while the expression tree was allocated in
the table memory.
Now the cached items that are inserted into expressions for virtual
columns with datetime comparisons are always allocated in the same
mem_root as the expressions for virtual columns. So now the inserted
cached items are valid for any queries that use these virtual columns. 

If a virtual column was used in the ORDER BY clause of a query
and some of the columns this virtual column was based upon were
not referenced anywhere in the query then the execution of the
query could cause an assertion failure.
It happened because in this case the bitmap of the columns used
for ordering keys was not formed correctly.

There was no error thrown when creating a table with a virtual table
computed by an expression returning a row.
This caused a crash when inserting into the table.

Removed periods at the end of the error messages for virtual columns.
Adjusted output in test result files accordingly. 

The functions mysql_delete and mysql_update lacked calls of
updated_virtual_fields(). This caused wrong results for
some DELETEs/UPDATEs.
Added test cases for this bug.

redone locking in TC_LOG_MMAP::log_xid

Fix a loop and install more script files. Renames the perlscripts component to scripts, since it now also has sql scripts.

Most of the changes are backports from MySQL 5.5. Please note
that the 64-bit build fails with VS 2010 and the 32-bit build
has problems running mysql-test-run.pl.
      
* Added files for compiling with VS 2010 and added them
to Makefile.am.
* ifdef'ed ETIMEDOUT, because it is defined by VS 2010 now
* Removed not needed /MAP's from cmake files

- Fixed memory leaks in mysqldump
- Fixed printf of NULL which caused crashes on OpenSolaris when using --debug
- Fixed realloc() problem that caused out of memory when running mysqldump.test on OpenSolaris


client/mysqldump.c:
  Fixed memory leaks
  Fixed printf of NULL which caused crashes on OpenSolaris when using --debug
client/mysqltest.cc:
  Fixed printf of NULL which caused crashes on OpenSolaris when using --debug
include/my_global.h:
  Added simple macro val_or_null() to simplify detecting of NULL strings for printf
sql/handler.cc:
  Fixed printf of NULL which caused crashes on OpenSolaris when using --debug
sql/sql_db.cc:
  Fixed printf of NULL which caused crashes on OpenSolaris when using --debug
  Removed testing of 'new_db_name' as this is guranteed never NULL
sql/sql_show.cc:
  Fixed printf of NULL which caused crashes on OpenSolaris when using --debug
storage/csv/ha_tina.cc:
  Fixed realloc() problem that caused out of memory when running mysqldump.test on OpenSolaris
  (OpenSolaris default malloc() can't handle a lot of reallocs() of strings that are growing one byte at a time)
  This did speed up logging to cvs with a magnitude for large strings.

sql/log_event.cc:
  Fixed compiler warning on windows
storage/maria/ma_state.c:
  Fixed compiler warning
storage/maria/maria_chk.c:
  Fixed compiler warning
storage/myisam/mi_dynrec.c:
  Fixed compiler warning
support-files/compiler_warnings.supp:
  Fixed suppression rule

storage/maria/unittest/ma_pagecache_single.c:
  Check if we can flush write locked page for normal flush
  Check that we can't flush read locked page with FLUSH_KEEP_LAZY (used by checkpoint)

filter out --binlog-format - it makes mysqld to fail without --log-bin,
and we don't need either anyway for --help to work.

(backport from MySQL)

- Changed default recovery mode from OFF to NORMAL to get automatic repair of not properly closed tables.
- Fixed a rase condition when two threads calls external_lock and thr_lock() in different order. When this happend the transaction that called external lock first
  and thr_lock() last did not see see the rows from the other transaction, even if if it had to wait in thr_lock() for other to complete.
- Fixed that one can run maria_chk on an automatcally recovered tables without warnings about too small transaction id
- Don't give warning that crashed table could not be repaired if repair was disabled (and thus not run)
- Fixed a error result from flush_key_cache() which caused a DBUG_ASSERT() when one was using concurrent reads on non transactional tables that was updated.

client/mysqldump.c:
  Add "" around error message to make it more readable
client/mysqltest.cc:
  Free environment variables
mysql-test/r/mysqldump.result:
  Updated results
mysql-test/r/openssl_1.result:
  Updated results
mysql-test/suite/maria/r/maria-recover.result:
  Updated results
mysql-test/suite/maria/r/maria3.result:
  Updated results
mysql-test/suite/maria/t/maria3.test:
  Added more test of temporary tables
storage/maria/ha_maria.cc:
  Changed default recovery mode from OFF to NORMAL to get automatic repair of not properly closed tables.
  Start transaction in ma_block_get_status() instead of in ha_maria::external_lock().
  - This fixes a rase condition when two threads calls external lock and thr_lock() in different order. When this happend the transaction that called external lock first and thr_lock() last did not see see the rows from the other transaction, even if if it had to wait in thr_lock() for other to complete.
  Store latest transaction id in controll file if recovery was done.
  - This allows one to run maria_chk on an automatcally recovered tables without warnings about too small transaction id
storage/maria/ha_maria.h:
  Don't give warning that crashed table could not be repaired if repair was disabled (and thus not run)
storage/maria/ma_blockrec.h:
  Added new function "_ma_block_get_status_no_versioning()"
storage/maria/ma_init.c:
  Added hook to create trn in ma_block_get_status() if we are using MariaDB
storage/maria/ma_open.c:
  Ensure we call _ma_block_get_status_no_versioning() for transactional tables without versioning (like tables with fulltext)
storage/maria/ma_pagecache.c:
  Allow one to flush blocks that are pinned for read.
  This fixed a error result from flush_key_cache() which caused a DBUG_ASSERT() when one was using concurrent reads on non transactional tables that was updated.
storage/maria/ma_recovery.c:
  Set maria_recovery_changed_data to 1 if recover changed something.
  Set max_trid_in_control_file to max found trn if we found a bigger trn.
  The allows will ensure that the control file is up to date after recovery which allows one to run maria_chk on the tables without warnings about too big trn
storage/maria/ma_state.c:
  Call maria_create_trn_hook() in _ma_setup_live_state() instead of ha_maria::external_lock()
  This ensures that 'state' and trn are in sync and thus fixes the race condition mentioned for ha_maria.cc
storage/maria/ma_static.c:
  Added maria_create_trn_hook() and maria_recovery_changed_data
storage/maria/maria_def.h:
  Added MARIA_HANDLER->external_ptr, which is used to hold MariaDB thd.
  Added some new external variables
  Removed reference to non existing function: maria_concurrent_inserts()

* fully support --mysqld=--plugin-load=xxxx
* uniformly support all loadable plugins, no need to hard-code
  every new plugin in mtr
* autodetect MTR_VS_CONFIG on windows