It puts files in the correct location for rpm/deb packages.

* now only production-use server plugins are in mariadb-server.
  client plugins are now in libmariadbclient18,
  testing-only server plugins are now in mariadb-test
  (set Coflicts: field properly)
* fix Architecture: of mariadb-test
* terrible hack to support optional deb packages for optional plugins

cmake/plugin.cmake:
  * auto-create an rpm for a plugin, if it places itself in a new component
storage/tokudb/CMakeLists.txt:
  install tokudb in COMPONENT tokudb-engine.
  this automatically creates a separate rpm for it.

* disable jemalloc on windows (cannot run ./configure)
* disable jemalloc on ancient cmake (ExternalProject does not work)
* rewrite TokuDB compiler test to check for features, not versions (to work on cmake before 2.8.11)
* fix ft-index to not add VALGRIND_INCLUDE_DIR to includes, if no valgrind was found
* correct the package name in FindValgrind.cmake (for find_package(... REQUIRED) to work)
* disable ft-index tests by default (faster compilation and they aren't used anyway)
* don't build ft-index with valgrind by default (otherwise it *requires* valgrind, it doesn't auto-detect)
* use --loose-tokudb in the .opt file

(otherwise one cannot even pull on windows)

mysql-test/CMakeLists.txt:
  don't generate collection fules. we don't use them
  and they break out-of-source builds

tell the optimizer that every TokuDB "clustering" index is the "covering" index
in the MariaDB optimizer sense.

While it is stable on itself, the MariaDB integration
within 5.5 series is rather new.

cmake/jemalloc.cmake:
  for dependencies to work, LIBJEMALLOC should be the target name, not the path
storage/tokudb/CMakeLists.txt:
  * check the preconditions
  * disable bdb tests (compilation errors)
  * set variable, instead of SET_PROPERTY. same effect,
    but doesn't fail when a plugin is disabled (that is, a target does not exist)
storage/tokudb/ft-index/CMakeLists.txt:
  cmake should not look into examples/ directory,
  there is hand-crafted examples/Makefile that
  cmake will overwrite
storage/tokudb/ft-index/buildheader/CMakeLists.txt:
  the syntax is ADD_EXECUTABLE(target source) and "source" is the file name
storage/tokudb/ft-index/cmake_modules/TokuMergeLibs.cmake:
  Libraries must be specified in the specific order,
  REMOVE_DUPLICATES cannot be used, because it destroys this order.
  
  (when OSLIBS contains "-lpthread -ljemalloc -lpthread", REMOVE_DUPLICATES
  makes it "-lpthread -ljemalloc". But a thread library *must* be *after* jemalloc)
storage/tokudb/ft-index/cmake_modules/TokuSetupCTest.cmake:
  * 'which' might print errors to stderr, they are not important, shut them up
  * we don't have TOKUDB_DATA, no need to warn about it
  * don't configure_file into itself (with input=output)
storage/tokudb/ft-index/cmake_modules/TokuThirdParty.cmake:
  jemalloc is built externally to tokudb/ft-index
storage/tokudb/ft-index/ft/CMakeLists.txt:
  the syntax is ADD_EXECUTABLE(target source) and "source" is the file name
storage/tokudb/ft-index/ft/tests/CMakeLists.txt:
  the syntax is ADD_EXECUTABLE(target source) and "source" is the file name
storage/tokudb/ft-index/locktree/tests/CMakeLists.txt:
  the syntax is ADD_EXECUTABLE(target source) and "source" is the file name
storage/tokudb/ft-index/portability/CMakeLists.txt:
  s/jemalloc/libjemalloc/
storage/tokudb/ft-index/portability/os_malloc.cc:
  unnecessary include file
storage/tokudb/ft-index/portability/tests/CMakeLists.txt:
  the syntax is ADD_EXECUTABLE(target source) and "source" is the file name
storage/tokudb/ft-index/src/tests/CMakeLists.txt:
  the syntax is ADD_EXECUTABLE(target source) and "source" is the file name
storage/tokudb/ft-index/util/tests/CMakeLists.txt:
  the syntax is ADD_EXECUTABLE(target source) and "source" is the file name
storage/tokudb/ft-index/utils/CMakeLists.txt:
  the syntax is ADD_EXECUTABLE(target source) and "source" is the file name

                TOKUDB_ZLIB | TOKUDB_QUICKLZ |
                TOKUDB_LZMA | TOKUDB_FAST |
                TOKUDB_SMALL }
syntax for tables

for dynamic engines (because it only looked at the one-byte code, not at the full
engine name).

that requires MDL_SHARED_NO_READ_WRITE.

be ignored on return

treated as coming from the overlay.

don't log it to the error log.

It's safe to delete from HASH when traversing it *backwards*, but not *forwards*.

The fix for mdev-4420 was not quite correct. This patch corrects it.

mysql-test/suite/rpl/r/last_insert_id.result:
  Test case for last_insert_id
mysql-test/suite/rpl/t/last_insert_id.cnf:
  Test case for last_insert_id
mysql-test/suite/rpl/t/last_insert_id.test:
  Test case for last_insert_id
sql/log_event.cc:
  Added DBUG_PRINT
  Set thd->first_successful_insert_id_in_prev_stmt_for_binlog when setting thd->first_successful_insert_id_in_prev_stmt.
  This is required to get last_insert_id() replicated.
  This is analog to how read_first_successful_insert_id_in_prev_stmt() works.
sql/rpl_utility.cc:
  Added DBUG_PRINT

When in function remove_eq_conds() a sub-formula of the processed condition
is replaced for another formula we should ensure that in the resulting
formula AND/OR levels must alternate.

The patch to fix mdev-4418 turned out to be incorrect.
At the substitution of single row tables in make_join_statistics()
the used multiple equalities may change and references to the new multiple
equalities must be updated. The function remove_eq_conds() takes care of it and
it should be called right after the substitution of single row tables.
Calling it after the call of make_join_statistics was a mistake.