- Update trivial .reject/.result differences (all checked)

must use C++ linking due to client library using SSL library, which needs
C++ linking

- Take into account that Dynamic_array::back() now returns 
  pointer to the last element (it used to return pointer to 
  right after the last element)
- Fix error messages merge: ER_INTERNAL_ERROR was defined 
  independently by both mysql-5.6 and mariadb-5.5. Switch 
  to their error number, and still support ours for compatibility.

- strict.test updated (changed back) after the cset with "Fix 
  type_newdecimal.test ..." two csets ago
- row-checksum.test changed the code from HA_WRONG_CREATE_OPTION 
  to ER_ILLEGAL_HA_CREATE_OPTION, like mysql-5.6 did

- MariaDB does not have mysql.slave_master_info, mysql.slave_relay_log_info ,mysql.slave_worker_info
  or mysql.ndb_binlog_index tables.
- Some tests expected to have these tables (this was an incorrect merge from 5.6, which merged 
  necessary tables like mysql.innodb*stats, but also got these tables)

Update log_tables.test: some definitions of columns have changed, and slow_log got 'thread_id' column.

Fix fix_priv_tables.test: make mysql_system_tables_fix.sql to not modify user.password_expired column.

- make the test output stable
- make Log_to_csv_event_handler::log_slow() to write the value 
  of thd->thread_id (it didn't, and so 0 was always logged).

- Work around the problem by forcing recalc_pool to free its buffer
  in dict_stats_recalc_pool_deinit().

 "Unknown table tbl" is now "Unknown table database.tbl"
(part#3)

 "Unknown table tbl" is now "Unknown table database.tbl"

Merged all ddl_logging code.
Merged sql_partition.cc
innodb_mysql_lock2.test and partition_cache.test now works.
Changed interface to strconvert() to make it easier to use with not \0 terminated strings.

sql/sql_partition.cc:
  Full merge with 5.6
sql/sql_table.cc:
  Merged all ddl_logging code
sql/strfunc.cc:
  Added from_length argument to strconvert() to make it possible to use without end terminated strings.
sql/strfunc.h:
  Added from_length argument to strconvert() to make it possible to use without end terminated strings.

 "Unknown table tbl" is now "Unknown table database.tbl"

  persistent table statistics with ANALYZE TABLE commands

    
MySQL 5.6.10 performance schema: merge of the test files for the host_cache table

With this patch, all tests perfschema.hostcache_* pass.
There are still some additional unmerged minor changes to these tests
in mysql 5.6.10.