reachable code).

Fix test failure when $vardir does not allow executing programs.

Reasons:
  alter_tablespace.rdiff: 
  tc_rename_error.result:
    from monty@askmonty.org-20120529213755-876ptdhhaj0t7l8r 
    (Added text for errno in error messages)
  insert_time.result:
    from sergii@pisem.net-20120908101555-37w00eyfrd9noc06 
    (MDEV-457 - Inconsistent data truncation)
  misc.result:
    from igor@askmonty.org-20130109033433-5awdv0w6vbpigltw
    (MDEV-3806/mwl248 - Engine independent statistics)
  tbl_opt_row_format.rdiff:
    from monty@askmonty.org-20120706161018-y5teinbuqpchle2m
    (Fixed wrong error codes)
  vcol.rdiff:  
    sergii@pisem.net-20121217100039-ikj1820nrku7p6d5
    (simplify the handler api)

The bug could cause a crash when several connections needed
persistent statistics for the same table.

Also added a missing call of set_statistics_for_table() in the code
of the function mysql_update.

Backport the fix from 10.0 tree

- The problem was that thd_killed() may be called by innodb from 
  an internal innodb thread.
- Fixed by not processing APC requests when we're not in the thread
  that owns the APC target.

Field matching fixed.
DBUG_ASSERT fixed.

Made allocation of memory for statistical data in a table share to be thread safe.
This memory is now allocated in a special MEM_ROOT that is created for each
table share.  

Remove timed mutexes in XtraDB - obsolete feature that does not link on Windows, if plugin is build dynamically
It was already  removed from innobase in the past.

Reasons:
  - as of 5.5.27, YEAR(2) is deprecated, hence the new warning;
  - MDEV-553 - different error code/message on out-of-range autoincrement;
  - INSERT IGNORE now produces a warning if a duplicate was encountered

storage_engine tests and upstream engines/* suites went out of sync with current MariaDB code. Reasons:
  - as of 5.5.27, YEAR(2) is deprecated, hence the new warning;
  - MDEV-553 - different error code/message on out-of-range autoincrement;
  - INSERT IGNORE now produces a warning if a duplicate was encountered (change pushed along with MDEV-553)

- update ha_cassandra::start_bulk_insert() definition to match those in class handler.

The patch lifts the limitation of the current implementation
of ALTER TABLE that does not allow to build unique/primary
indexes by sort for MyISAM and Aria engines.

- Cleanup ha_cassandra::store_lock()
- Remove dummy ha_cassandra::delete_table()
- Add HA_TABLE_SCAN_ON_INDEX to table_flags()

- Register counters directly in the array passed to maria_declare_plugin. As 
  a consequence, FLUSH TABLES will reset the counters.
- Update test results accordingly.

- Partially address review feedback.
- Update cassandra.test result result
- make cassandra.test timezone-agnostic

Implement it in a different way that works on both release and debug
builds, and still uses --skip instead of --require.

have_openssl variable was ON even when OpenSSL was not used (but YaSSL was).
fix that, so that have_openssl really corresponds to OpenSSL

rename not_openssl.inc to not_ssl.inc and fix the test accordingly.

remove unused require files