* indeed, "username IDENTIFIED BY PASSWORD hash" is the same
  as "username IDENTIFIED VIA mysql_native_password USING hash"
* LEX_USER::password can now be used for plain-text passwords

REQUIRE and MAX_QUERIES_PER_HOUR can not possibly apply to a role

* remove no-op check_password_policy() and references to it
* add 'static' to functions that need it
* remove unused function check_acl_user()

  username IDENTIFIED BY PASSWORD xxx
  username IDENTIFIED VIA mysql_native_password USING xxx
  etc

also check for valid strlen(xxx)

* test for opt->name being non-NULL *before* dereferencing it
* remove unused argument in cleanup_variables()
* simplify

Rows_log_event::write_row - don't optimize DELETE+INSERT
into UPDATE if RBR triggers are used

revert the patch for "out parameters in prepare"

as CHARSET_INFO is already const, using const on it
is redundant and results in compiler warnings (on Windows)

1. don't cast size_t* to int*
2. remove long obsolete register specifier

fail CREATE SERVER foreign data wrapper is "mysql"
and neither HOST nor SOCKET are specified.

Also default PORT to 3306 (again, only for foreign
data wrapper "mysql")

* pass LEX_STRING's from the parser, don't ignore the length only to strlen later
* init LEX::server_options only for SERVER commands, not for every statement
* don't put temporary values into a global persistent memroot

but really it's just scratching a surface

Implementation for domain ID based filtering of replication events.

Conflicts:
	.bzrignore
	VERSION
	cmake/plugin.cmake
	debian/dist/Debian/control
	debian/dist/Ubuntu/control
	mysql-test/r/join_outer.result
	mysql-test/r/join_outer_jcl6.result
	mysql-test/r/null.result
	mysql-test/r/old-mode.result
	mysql-test/r/union.result
	mysql-test/t/join_outer.test
	mysql-test/t/null.test
	mysql-test/t/old-mode.test
	mysql-test/t/union.test
	packaging/rpm-oel/mysql.spec.in
	scripts/mysql_config.sh
	sql/ha_ndbcluster.cc
	sql/ha_ndbcluster_binlog.cc
	sql/ha_ndbcluster_cond.cc
	sql/item_cmpfunc.h
	sql/lock.cc
	sql/sql_select.cc
	sql/sql_show.cc
	sql/sql_update.cc
	sql/sql_yacc.yy
	storage/innobase/buf/buf0flu.cc
	storage/innobase/fil/fil0fil.cc
	storage/innobase/include/srv0srv.h
	storage/innobase/lock/lock0lock.cc
	storage/tokudb/CMakeLists.txt
	storage/xtradb/buf/buf0flu.cc
	storage/xtradb/fil/fil0fil.cc
	storage/xtradb/include/srv0srv.h
	storage/xtradb/lock/lock0lock.cc
	support-files/mysql.spec.sh

otherwise mysqltest complains "No queries executed but non-empty result file found!"

in particular, not fail with --vertical_results

Problem was that temporal buffers allocated for page compression
are not initialized and rest of the page that is actually writen
was als not initialized after previous usage.

There was a race. The test case was expecting the slave to start processing a
particular DELETE statement, then the test would stop the slave at this
point. But there was missing something to wait until the slave would actually
reach this point; thus depending on timing it was possible that the slave
would be stopped too early, causing .result file difference.

Fixed by adding an appropriate wait to the test case.

Fix wording in error log message, to be consistent with other messages ("IO thread" -> "I/O thread").

Fix rare failures in test case rpl.rpl_gtid_basic:

 - Add another possible error code when a connection is killed.

 - Make sure that the IO thread has had time to complete its stop after START
   SLAVE UNTIL. Otherwise, START SLAVE might run before IO thread stop,
   leaving the test case with a stopped IO thread that eventually causes a
   wait timeout.

Decision about algorihtm moved on prepare phase.
Made possible to add mpore password algorithms.