force -fno-strict-aliasing for oqgraph

The problem was that was_null and null_value variables was reset in each reexecution of IN subquery, but engine rerun only for non-constant subqueries.

Fixed checking constant in Item_equal sort.
Fix constant reporting in Item_subselect.

Various places in the server replication code was incorrectly quoting
strings, which could lead to incorrect SQL on the slave/mysqlbinlog.

fix mysys/waiting_threads.c to compile w/o performance schema
include clients. scripts and manpages in -DWITHOUT_SERVER

only add cmake as a build dependency for distributions, where cmake is recent enough

Item::get_date() should return 1 unless the value is a valid date.

two tests still fail:
  main.innodb_icp and main.range_vs_index_merge_innodb
  call records_in_range() with both range ends being open
  (which triggers an assert)

increase xtradb verson from 13.0 to 13.01

The fix backports from MWL#182: Explain running statements the logic that
saves the original JOIN_TAB array of a query plan after optimization. This
array is later used during EXPLAIN to iterate over the original JOIN plan
nodes in the cases when this plan could be changed by early subquery
execution during the optimization phase of the outer query.

The crash happend when combining query cache, prepared statements and using a read only cursor.

sql/sql_cache.cc:
  Fixed unlikely error when one adjust query cache size in middle of operation
sql/sql_cursor.cc:
  Disable query cache when using cursors. This fixed lp:1039277
tests/mysql_client_test.c:
  Test case for lp:1039277

sql/handler.cc:
  SHOW INNODB STATUS sometimes returns 0 even if it has generated an error.
  This code is here to catch it until InnoDB some day is fixed.
storage/innobase/handler/ha_innodb.cc:
  Catch at least one of the possible errors from SHOW INNODB STATUS to provide a correct return code.
storage/xtradb/handler/ha_innodb.cc:
  Catch at least one of the possible errors from SHOW INNODB STATUS to provide a correct return code.
support-files/my-huge.cnf.sh:
  Fixed typo

Fixed error in test that caused following tests to fail

extra/yassl/taocrypt/src/dsa.cpp:
  Fixed compiler warning by adding cast
mysql-test/suite/rpl/t/rpl_start_slave_deadlock_sys_vars.test:
  We have to first test for have_debug_sync to not start master wrongly
plugin/auth_pam/auth_pam.c:
  Fixed compiler warning
sql/sys_vars.h:
  Fixed compiler warning (Sys_var_max_user_conn is now signed)
support-files/compiler_warnings.supp:
  Don't give warnings for auth_pam.c (Tried to fix it by changing the code, but could not find an easy way to do that on solaris)

Fixed MDEV-366: Assertion `share->reopen == 1' failed in maria_extra on DROP TABLE which is locked twice

mysql-test/suite/maria/lock.result:
  Added test case
mysql-test/suite/maria/lock.test:
  Added test case
sql/sql_table.cc:
  One can't call HA_EXTRA_FORCE_REOPEN on something that may be opened twice.
  It's safe to remove the call in this case as we will call HA_EXTRA_PREPARE_FOR_DROP for the table anyway.
  (One nice side effect is that drop is a bit faster as we are not flushing the cache to disk before the drop anymore)

mysql-test/r/partition.result:
  Added test case
mysql-test/t/partition.test:
  Added test case
sql/sql_partition.cc:
  Do mysql_trans_prepare_alter_copy_data() after all original tables are locked.
  (We don't want to disable transactions for the original tables, that still may be in the cache)
sql/sql_table.cc:
  Fixed two wrong DBUG_ENTER