bugfix: garbage in PLUGIN_VAR_STR variables when INSTALL'ing a plugin

mysql-test/include/default_mysqld.cnf:
  disable feedback plugin by default.
  when enabled - tag is as a test run

send "startup" message 5 minutes after startup, not immediately

Makefile.am:
  mariadb uses .la libraries for static plugins.
  mysql - .a libraries
plug.in:
  mariadb uses .la libraries for static plugins.
  mysql - .a libraries
sender_thread.cc:
  send "startup" message 5 minutes after startup, not immediately
url_http.cc:
  avoid "unused variable https" warning

CMakeLists.txt:
  1. add -DSAFEMALLOC -DSAFE_MUTEX in the top-level CMakeLists.txt
     don't force plugins to copy-paste these lines in their CMakeLists.txt
  2.1 search plugin/* for plugins (not only storage/*),
  2.2 recognize MYSQL_PLUGIN (not only MYSQL_STORAGE_ENGINE),
  2.3 extract library names from the plug.in (don't force library names to
      be ha_<engine>.dll and <engine>.lib)
include/mysql/plugin.h:
  define MYSQL_PLUGIN_EXPORT appropriately
  (backport from 5.5)
libmysqld/CMakeLists.txt:
  remove unnecessary workaround
plugin/fulltext/CMakeLists.txt:
  build fulltext example plugin on windows
storage/maria/CMakeLists.txt:
  The library is called libmaria_s.lib, not maria.lib
storage/maria/unittest/CMakeLists.txt:
  The library is called libmaria_s.lib, not maria.lib
storage/myisam/CMakeLists.txt:
  The library is called libmyisam_s.lib, not myisam.lib
storage/mysql_storage_engine.cmake:
  introduce MYSQL_PLUGIN macro.
  don't force library names to be ha_<engine>.dll and <engine>.lib
storage/xtradb/CMakeLists.txt:
  remove a condition from include
win/README:
  don't use deprecated syntax
win/configure-mariadb.sh:
  don't use deprecated syntax
win/configure.js:
  1. support MYSQL_PLUGIN in addition to MYSQL_STORAGE_ENGINE.
  2. support plugin/* in addition to storage/*

The bug was that when using bulk insert combined with lock table, we intitalized the io cache with the wrong file position.
This fixed a bug where MariaDB could not read in a table dump done with mysqldump.


mysql-test/suite/maria/r/locking.result:
  Test case for locking + write cache bug
mysql-test/suite/maria/t/locking.test:
  Test case for locking + write cache bug
storage/maria/ma_extra.c:
  Initialize write cache used with bulk insert to correct file length.
  (The old code didn't work if one was using LOCK TABLE for the given table).

Fixed lp:814231 Aria post-recovery error "Bitmap at page 0 has pages reserved outside of data file length"
The bug was a wrong check in aria_chk;  The table was fine.


storage/maria/ma_bitmap.c:
  Print whole bitmap to find errors in last bitmap
storage/maria/ma_check.c:
  Fixed wrong test if bitmap was overallocated.

Problem was the parsing of test suite files for various tags and options.
This was done inefficiently, and include files were re-parsed for every
place they were included. This caused a delay of 20 seconds or so before
the first test started to run.

By parsing more efficiently and re-using first parse for subsequent
inclusion of the same file, time spent parsing is reduced to less than
1 second, and start appears instantaneous.

(With this patch, full ./mtr runs in 3 minutes on my laptop (release
build.)

mysql-test/suite/innodb_plugin/t/innodb_bug52663.test:
  Test is fairly slow, so try to avoid getting stuck with it at the end
  while other workers are idle.

scripts/mysqldumpslow.sh:
  Remove not used --basedir option
  Ensure that the last --datadir option is used from the my.cnf files.

The bug happens when one uses MAX_ROWS=# with Aria & row_format=page and one insert more than # rows.


mysql-test/mysql-test-run.pl:
  Ignore table is full error messages
mysql-test/suite/maria/r/max_length.result:
  Test case for 'Table is full'
mysql-test/suite/maria/t/max_length.test:
  Test case for 'Table is full'
storage/maria/ma_bitmap.c:
  Ensure that we don't allocate bits outside of max_data_file_size.
  Adjust max_data_file_size based on bitmap alignments.
  Backport fix to adjust wrong first_bitmap_with_space.
storage/maria/ma_blockrec.c:
  Calculate value of max_data_file_length
storage/maria/ma_blockrec.h:
  Updated prototype for _ma_bitmap_init()
storage/maria/ma_check.c:
  Give warnings if file sizes are above max file sizes.
  Give more warnings in case of errors.
  Have maria_chk write if table is recreated.
storage/maria/ma_create.c:
  Better calculation of max_data_file_length and thus data pointer length.
  Fixes some wrong pointer lengths when using MAX_ROWS=#
storage/maria/ma_open.c:
  Removed duplicate assigment.
  Use block size from file instead of global variable.
storage/maria/maria_chk.c:
  Remove -1 from printed file length
storage/maria/maria_def.h:
  Update struct st_maria_file_bitmap

Fixed explains of previous patch.

mysql-test/r/explain.result:
  Fixed explains of previous patch.
mysql-test/r/join_outer.result:
  Fixed explains of previous patch.
mysql-test/r/negation_elimination.result:
  Fixed explains of previous patch.
mysql-test/r/view.result:
  Fixed explains of previous patch.
mysql-test/suite/innodb/r/innodb_mysql.result:
  Removed duplicate test suite.
mysql-test/suite/innodb/t/innodb_mysql.test:
  Removed duplicate test suite.
mysql-test/suite/innodb_plugin/r/innodb_mysql.result:
  Removed duplicate test suite.
mysql-test/suite/innodb_plugin/t/innodb_mysql.test:
  Removed duplicate test suite.
sql/opt_range.h:
  Removed incorrect fix.
sql/records.cc:
  Removed incorrect fix.

There are 2 volatile condition constructions AND/OR constructions and fields(references) when first
good supported to be top elements of conditions because it is normal practice
(see copy_andor_structure for example) fields without any expression in the condition is really rare
and mostly useless case however it could lead to problems when optimiser changes/moves them unaware
of other variables referring to them. An easy solution of this problem is just to replace single field
in a condition with equivalent expression well supported by the server (<field> -> <field> != 0).

mysql-test/r/view.result:
  New test added.
mysql-test/t/view.test:
  New test added.
sql/sql_parse.cc:
  <field> -> <field> != 0
sql/sql_yacc.yy:
  <field> -> <field> != 0

Fix is to replace uint in public header with unsigned int.  uint is not guaranteed to be defined by system headers.

before strlen(db) we need to be sure that
db lies within packet boundaries

- Fixed error when writing a blob to the last page on the bitmap.
- Marked bitmap changed in once case that could cause two rows to use the same blob page.

mysql-test/r/join.result:
  Test case for LP:798597
mysql-test/t/join.test:
  Test case for LP:798597
sql/sql_select.cc:
  In simplify_joins we reset table->maybe_null for outer join tables that can't ever be NULL.
  This caused a conflict between the previously calculated items and the group_buffer against the fields
  in the temporary table that are created as not null thanks to the optimization.
  The fix is to correct the group by items to also be not_null so that they match the used fields and keys.

initialize plugins earlier, to support, for example, non-MyISAM mysql.plugin table.

(without CFLAGS=-DSAFEMALLOC).

Disable call to setpriority() in pbxt. This caused mysqld to run with nice priority -19, which was far from optimal.

mysql-test/suite/innodb/r/innodb_bug60049.result:
  Updated results
mysql-test/suite/innodb/t/innodb_bug60049.test:
  Force global.innodb_fast_shutdown to 0 as test require it
mysql-test/suite/innodb_plugin/t/innodb_bug60049.test:
  Force global.innodb_fast_shutdown to 0 as test require it
storage/pbxt/src/pthread_xt.cc:
  Disable call to setpriority()

The printing of include stack in the error case in mysqltest omitted the
bottom of the stack (the line number in original test case file), and instead
printed the top of the stack twice. Fix to print each element on the stack
once and only once.

Simplifies handling 5.1 in buildbot.

On Windows, do not attempt access() for special device names like
CON, PRN etc. access() would return 0, this does not mean that fiile
with this name exists.

mysql-test/r/create.result:
  test of renaming
mysql-test/r/upgrade.result:
  Now such behaviour prohibited to avoid problems.
mysql-test/t/create.test:
  test of renaming
mysql-test/t/upgrade.test:
  Now such behaviour prohibited to avoid problems.
sql/mysql_priv.h:
  Function to test table name presence added.
sql/sql_rename.cc:
  Rename fixed.
sql/sql_table.cc:
  Function to test table name presence added.
  Create fixed.

Problem was setting DEBUG_SYNC twice in a row too fast in the test case; this
could cause the second setting to override the first before the code had time
to react to the first, causing the signal to get lost.

Fixed by waiting for the code to receive the first signal before overwriting
it in the test case.

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()