(Test failed if we added my_sleep(200000) in event_queue::cond_wait() just before pthread_cond_wait();  Not likely scenario but better to get that fixed too)

Fixed race condition in event that could cause hang when stopping event scheduler with SET GLOBAL event_scheduler=OFF 

client/mysqltest.cc:
  Write command to be executed to the log BEFORE executing the command.
  This makes it easier to debug crashes as the log will contain the fatal command.
mysql-test/r/mysqltest.result:
  Updated results (we now get more things logged)
sql/event_queue.cc:
  Fixed race condition in event that could cause hang when stopping event scheduler with SET GLOBAL event_scheduler=OFF.
  The reason was that a kill signal could be sent between last check of thd->killed and before thd->enter_cond() in which case the signal
  would be missed and we would be stuck in Event_scheduler::stop() forever.

Reverted unittest/unit.pl back to Test::Harness as some of our build machines didn't support the new recommended TAP::Harness module

unittest/mytap/tap.c:
  Fixed output for some tests that didn't call plan()

MWL#180: Merge bugfix from 5.2 to 5.3 codebase + really fix version from which mariadb supports binlog checksums.

storage/maria/unittest/ma_test_loghandler-t.c:
  Don't sync during test
storage/maria/unittest/ma_test_loghandler_multigroup-t.c:
  Don't sync during test
storage/maria/unittest/ma_test_loghandler_multithread-t.c:
  Don't sync during test
unittest/mysys/bitmap-t.c:
  Don't test all bit combinations (not needed)
unittest/mysys/thr_template.c:
  Remove sleep as old bug should be fixed nowadays
unittest/mysys/waiting_threads-t.c:
  Only run test with --big
unittest/mytap/tap.c:
  Print total time at end of test.
unittest/unit.pl:
  Use TAP::Harness instead of Test::Harness (recommended according to manual)
  Add times to tests.

If the value of the flag cond_false of an Item_equal object is
true then the print method must return the string '0'.

Fixed compiler warnings

client/readline.cc:
  Fixed compiler warning
mysql-test/suite/innodb/t/innodb_bug60049.test:
  This test failed when running with --mysqld=--loose-innodb-fast-shutdown=2 which we do on some machines
mysql-test/t/mysqldump.test:
  Only run test if utf8 is used
sql/log.cc:
  Fixed compiler warning
sql/mysql_priv.h:
  Fixed compiler warnings
tests/mysql_client_test.c:
  Don't abort test if ucs2 is not in use.

Fixed compiler warnings

client/readline.cc:
  Fixed compiler warning
mysql-test/t/mysqldump.test:
  Only run test if utf8 is used
sql/log.cc:
  Fixed compiler warning
sql/mysql_priv.h:
  Fixed compiler warnings
tests/mysql_client_test.c:
  Don't abort test if ucs2 is not in use.

The third parameter in the call of make_cond_for_table() that
built the pushed condition containing only outer references
was incorrect. This condition appeared for the first time in
the patch fixing bug 729039.
  

into 5.1

The reason for mtr warning is that collect_mysqld_features() starts mysqld with --datadir=/tmp and this 
directory does not exist on Windows.

Fix : instead of passing --datadir=$opt_vardir/tmp in collect_mysqld_features() just use --datadir=.
mysqld does not need a correct directory, just an existing one, as it is started with --help ---verbose -skip-grant-tables.

MWL#180: merge fixes from 5.2-rpl + forgot to adjust revision from which checksums are supported when merging into 5.3-based tree.

 - Fix windows CMake build.
 - Merge some later test case fixes, to see if they solve the random rpl_checksum failure.

The bug was introduced by the patch that fixed bug 717577.

mysql-test/suite/funcs_1/r/is_columns_is.result:
  Updated test results
mysql-test/suite/pbxt/r/client_xml.result:
  Updated test results
mysys/Makefile.am:
  Added back my_port.c
storage/xtradb/buf/buf0buddy.c:
  Removed not used variables
storage/xtradb/fil/fil0fil.c:
  Added casts to fix compiler warnings