to work in cygnin perl too

remove duplicates from the --plugin-load list.
$ENV{TERM} can be undefined (on Windows)

* expanding unknown env variable does not abort mtr
* have_archive, blackhole, innodb - preload the corresponding engine
* all options from .opt files get equal treatment, all are searched for special options,
  not only -{master,slave}.opt as before (which ignored suite.opt and --mysqld=...)
* --plugin-load gets special treatment too - all instances are merged into one
* federated test fixed to preload federated

- Need to get autopush to work to avoid bad pushes like this....

Increased default buffers to speed up maria_chk

mysql-test/suite/maria/r/maria3.result:
  Fixed failing test
storage/maria/maria_chk.c:
  Increase default page_buffer_size
storage/maria/maria_def.h:
  Increased default sort buffer size for maria_chk.

Fixed compiler warning

client/mysql.cc:
  Fixed compiler warning
include/my_global.h:
  Fixed typo
storage/maria/ha_maria.cc:
  Merge

This will give a smoother experience when using the Aria engine by those that are using default limits
without still causing a notable problem for desktop users.

The bug was based on wrong undo data in recovery file and not enough checking of bad data.

sql/sql_select.h:
  Added comment
storage/maria/ma_blockrec.c:
  - Removed wrong sanity checks (didn't work for UNDO records)
  - More sanity checks and DBUG_ASSERT
  - More DBUG_ENTER and DBUG_PRINT
  - Removed filler blocks in extent_to_bitmap_blocks() as it caused problems in write_block_record().
    This was the main cause of the bug.
    (This change can make records generated by UNDO slightly smaller than original record, which we have to fix
    by correcting row_pos.length before calling write_block_record())
  - Fixed some problems in write_block_record() while doing UNDO.
  - Store header_length without TRANSID_SIZE into recovery log (as UNDO entires doesn't have TRANSID_SIZE)
  - Mark table crashed if something goes wrong during UNDO
storage/maria/maria_def.h:
  Added header_length

- CTRL-C now aborts 'source' commands in mysql client
- Fix that thread id's are removed in convert-debug-for-diff.sh


client/mysql.cc:
  CTRL-C now aborts 'source' commands
scripts/convert-debug-for-diff.sh:
  Fix expression to remove thread id
storage/maria/ha_maria.cc:
  Don't call DBUG_ASSERT() when we kill a query during REPAIR / ALTER TABLE
storage/maria/ma_bitmap.c:
  Added DBUG_ASSERT() if we call _ma_bitmap_set_full_page_bits()
storage/maria/ma_key_recover.c:
  Don't do an assert if table is marked crashed.
storage/maria/ma_recovery.c:
  Added DBUG_ENTER

Fix for LP#612894 Some aggregate functions (such as MIN MAX) work incorrectly in subqueries after getting NULL value


mysql-test/r/group_by.result:
  Added test that showed problems that no_rows_in_results() didn't work for expressions
mysql-test/r/subselect4.result:
  Test case for LP#612894
mysql-test/t/group_by.test:
  Added test that showed problems that no_rows_in_results() didn't work for expressions
mysql-test/t/subselect4.test:
  Test case for LP#612894
sql/item.h:
  Added restore_to_before_no_rows_in_result()
  Added function processor for no_rows_in_results() and restore_to_before_no_rows_in_results() to ensure it works with functions
  Fix that above functions are handled by Item_ref()
sql/item_func.h:
  Ensure that no_rows_in_results() and restore_to_before_no_rows_in_result() are called for all function arguments
sql/item_sum.cc:
  Added restore_to_before_no_rows_in_result() to restore settings after Item_sum_hybrid::no_rows_in_result() was called.
  This is needed to handle the case where we have made 'make_const()' on the item in opt_sum(), but the item will be reused again in a sub query.
  Ignore multiple calls to no_rows_in_result() as Item_ref is calling it twice.
sql/item_sum.h:
  Added restore_to_before_no_rows_in_result();
sql/sql_select.cc:
  Added reset of no_rows_in_result() for JOIN::reinit()
sql/sql_select.h:
  Added marker if no_rows_in_result() is called.

storage/maria/ma_blockrec.c:
  Fixed compilation failure
support-files/compiler_warnings.supp:
  Added suppressions for pbxt

More DBUG_ASSERT() to discover errors earlier
More checking of BLOCK structures in Aria.
Fixed crashing bug in Aria when doing UPDATE of several records in same block when doing table scan.

storage/federatedx/ha_federatedx.cc:
  Added missing delete_dynamic(); This fixes the valgrind warnings about lost memory discovered by buildbot.
storage/maria/ma_blockrec.c:
  Added debugging helper function _ma_print_block_info() to print block structure.
  Changed arguments to _ma_print_directory() so it can be called by _ma_print_block_info()
  check_directory() now also checks that empty_space on block is calculated correctly.
  Added some local variables to get more information about what happend when things crash.
  Fixed crashing bug when doing UPDATE of several records in same block when doing table scan.
storage/maria/ma_key_recover.c:
  Simple optimization (don't call bmove_upp() if not needed); This could happen during page split.
storage/maria/ma_recovery.c:
  Fixed compiler warning
storage/maria/ma_test2.c:
  Run test without syncing to disk. (Not needed for this test)
storage/maria/ma_write.c:
  More comments.
  Added DBUG_ASSERT() to find wrong log entires, like the one reported at LP#616344, during log file creation.
storage/maria/unittest/ma_test_recovery.pl:
  Added extra -s to maria_chk to get it more silent.
  This fixes that ma_test_all.sh works again.

More DBUG
Added convert-debug-for-diff
Added missing (from last push) federated test case

.bzrignore:
  Ignore generated files
mysql-test/README:
  Updated documentation for --extern
mysql-test/suite/federated/federated_bug_32426.result:
  Added test for federatedx
mysql-test/suite/federated/federated_bug_32426.test:
  Added test for federatedx
scripts/Makefile.am:
  Added convert-debug-for-diff
scripts/convert-debug-for-diff.sh:
  Added script for converting
sql/log.cc:
  Added DBUG
sql/mysqld.cc:
  Added DBUG
storage/maria/ma_recovery.c:
  If verbose, write dirty pages (for debugging)
storage/maria/ma_static.c:
  Added verbose mode to recovery
storage/maria/maria_def.h:
  Added verbose mode to recovery
storage/maria/maria_read_log.c:
  Added verbose mode to recovery

* no automatic --loose-skip-innodb added by mtr based on the test name.
  instead loose-skip-innodb is now in the default_mysqld.cnf
* have_innodb_plugin.inc is changed to give a verbose "skip" message
  (instead of "require: true")
* My::Suite class. It's support in mtr, and everywhere
* support for suite.pm
* when sorting tests, take combinations into account
* support for SUITENAME_COMBINATIONS
* no special treatment for innodb_plugin in mtr_cases.pm
* two special pre-created config groups: ENV and OPT
* allow option names to start from #
* allow magic option to have an argument
* remove dead code
* fix @-substitution to works as expected
* new processes take the value of $opt_verbose automatically, no need to pass it to a constructor
* innodb_plugin suite uses suite.pm and combinations file to test as much as possible
  (innodb plugin, xtradb plugin, xtradb static - whatever available)
* besides test-master.opt and test-slave.opt a test.opt file is also
  loaded, both for master and slave
* .opt files for all included files are loaded too
* progress report in the xterm titlebar

Patch taken from lp:~capttofu/maria/bug_571200 (originally for MariaDB 5.3, but adapted for 5.1)

Print out checked file names in maria_check -s (unless you use a second -s)
Some trivial optimizations

storage/maria/ma_bitmap.c:
  Trivial optimizations:
  - Combine common code (to be able to remove duplicate mutex_lock call)
  - Move setting of thread specific variables outside of mutex
storage/maria/ma_check.c:
  Fixed wrong argument to printf
storage/maria/maria_chk.c:
  Print out checked table names unless -s -s
storage/maria/maria_read_log.c:
  Added option --start-from-checkpoint (to help find bugs in checkpoints)

client/mysqlcheck.c:
  Added missing casts
client/mysqldump.c:
  Added missing casts
client/mysqlimport.c:
  Added missing casts
extra/my_print_defaults.c:
  Added missing casts
mysql-test/mysql-test-run.pl:
  Added suppression for non-critical warning on windows
storage/maria/maria_pack.c:
  Added missing casts
storage/xtradb/buf/buf0lru.c:
  Added missing casts
storage/xtradb/fil/fil0fil.c:
  Added missing casts
storage/xtradb/handler/i_s.cc:
  Added extra argument to call store() function for longlong.
storage/xtradb/srv/srv0srv.c:
  Added cast to suppress compiler warning
support-files/compiler_warnings.supp:
  Added suppression for some non critical compiler warnings on Windows
unittest/mytap/tap.h:
  Fixed prototypes to be same as the actual functions

maria_chk & maria_read_log now reads block size from control file.



mysql-test/suite/maria/r/maria.result:
  Updated results after trivial change of maria_chk's output
storage/maria/ma_bitmap.c:
  More DBUG_PRINT
storage/maria/ma_blockrec.c:
  Fixed bug that we didn't mark page full in bitmap if directory is full
storage/maria/ma_check.c:
  Write out if directory is full for errors in bitmap
storage/maria/ma_control_file.c:
  Don't give error for wrong block size if block size is 0
storage/maria/maria_chk.c:
  Read block size from control file
  In case of -dvv, write also out bitmap information (good for debugging)
storage/maria/maria_read_log.c:
  Read block size from control file
  Fixed that maria_read_log works with different page size than TRANSLOG_PAGE_SIZE

Added straight_join to make results predicatable

mysql-test/suite/pbxt/r/range.result:
  Added straight_join to make results predicatable
mysql-test/suite/pbxt/t/range.test:
  Added straight_join to make results predicatable
mysys/my_sync.c:
  Fixed typo

(as -max scripts don't)

Fixed wrong argument to translog_write_record() that caused core dump in maria.maria-gis-rtree-trans and some other tests
(Bug introduced by my last push)

Fixed LP#613418 (M)aria recovery failure: ma_key_recover.c:981: _ma_apply_redo_index: Assertion `check_page_length == page_length' failed

include/my_sys.h:
  Added my_disable_sync
mysql-test/mysql-test-run.pl:
  Added --sync-sys=0 to run test suite faster
mysys/my_static.c:
  Added my_disable_sync
mysys/my_sync.c:
  Added my_disable_sync
sql/mysqld.cc:
  Added -sync-sys=0 option for mysqld to skip sync() calls for faster testing
storage/maria/ma_key_recover.c:
  More DBUG_ASSERT()
  Added logging of KEY_OP_DEBUG to make examening of logs easier
  Fixed testing of page length in recovery to ensure we don't overwrite checksum (previous tests was too relaxed)
  Fixed bug in recovery logging of split pages which caused failure during recovery:
  - Length was not adjusted properly for pages to be split
  - Added KEY_OP_MAX_PAGELENGTH to tell recovery that page is now full length
  - This fixed LP#613418
storage/maria/ma_key_recover.h:
  Changed prototype for ma_log_change() for KEY_OP_DEBUG
storage/maria/ma_loghandler.h:
  Added new enums for better debugging of recovery logs
storage/maria/ma_rt_index.c:
  Added debugging information to calls to ma_log_change()
storage/maria/ma_write.c:
  Added debugging information to calls to ma_log_change() and ma_log_split()

Ensure that xtradb & InnoDB plugin compiles if valgrind is installed but not valgrind debug libraries

This patch fixes LP#613408  Memory corruption with (M)aria storage engine and virtual columns in MariaDB 5.2
Fixed compiler warnings
Disabled some tests that doesn't work on windows (uses shell tools or strange characters)



client/mysqlshow.c:
  Fixed compiler warnings
client/mysqlslap.c:
  Fixed compiler warnings
mysql-test/mysql-test-run.pl:
  Use an error file instead of /dev/null
  (Fixes problem on Windows and the output may be usefull)
mysql-test/suite/maria/r/maria.result:
  Test case for bug LP#613408 (not complete)
mysql-test/suite/maria/t/maria.test:
  Test case for bug LP#613408 (not complete)
mysql-test/suite/percona/percona_log_slow_slave_statements-and-use_global_long_query_time.test:
  This test doesn't work one windows (needs shell tools)
mysql-test/suite/percona/percona_log_slow_slave_statements.test:
  This test doesn't work one windows (needs shell tools)
mysql-test/suite/percona/percona_slow_query_log-control_global_slow.test:
  This test doesn't work one windows (needs shell tools)
mysql-test/suite/percona/percona_slow_query_log-log_slow_filter.test:
  This test doesn't work one windows (needs shell tools)
mysql-test/suite/percona/percona_slow_query_log-log_slow_verbosity.test:
  This test doesn't work one windows (needs shell tools)
mysql-test/suite/percona/percona_slow_query_log-long_query_time.test:
  This test doesn't work one windows (needs shell tools)
mysql-test/suite/percona/percona_slow_query_log-microseconds_in_slow_query_log.test:
  This test doesn't work one windows (needs shell tools)
mysql-test/suite/percona/percona_slow_query_log-min_examined_row_limit.test:
  This test doesn't work one windows (needs shell tools)
mysql-test/suite/percona/percona_slow_query_log-use_global_long_query_time.test:
  This test doesn't work one windows (needs shell tools)
mysql-test/t/ctype_filesystem.test:
  This test doesn't work one windows (problem with character sets)
mysql-test/t/events_time_zone.test:
  Use longer times to get predictable tests
mysql-test/t/show_check-master.opt:
  set long query time to get more predictable tests
storage/maria/ma_check.c:
  Restore info->s->lock_key_trees after repair.
  Disable logging to temp tables for all repair cases (safety fix)
storage/maria/ma_state.c:
  Ensurethat info->state_start doesn't point to freed memory. (Could happen after running an internal repair to fast create indexes)
storage/maria/trnman.c:
  Added longer comment

Fixed compiler warnings

client/mysqlslap.c:
  Fixed compiler warnings
mysql-test/suite/maria/r/maria.result:
  Test case for LP#614265
mysql-test/suite/maria/t/maria.test:
  Test case for LP#614265
mysql-test/suite/pbxt/t/skip_name_resolve-master.opt:
  Ensure that we get restart before test (as test uses show processlist)
sql/handler.cc:
  Added cloned marker if clone was called (for safety checks & debugging)
sql/handler.h:
  Added cloned marker if clone was called (for safety checks & debugging)
storage/maria/ha_maria.cc:
  In clone call, set file->trn if cloned file had this set. This is needed as maria_create_trn_for_mysql() and thus file->trn is never set for cloned table.
  Ensure that file->trn is properly reset after calls to repair/check/zerofill.
  Increment locked table count if file->trn is set (as we decrement this in the unlock call)
tests/mysql_client_test.c:
  Fixed compiler warnings