- Mis-matched SAFEMALLOC defines caused misleading error message.


client/mysqlbinlog.cc:
  Bug#23736 Pointer free error in mysqlbinlog
  - Re-worked the Load_log_processor so that it frees it's resources before 
  my_end is called.  This is necessary because SAFEMALLOC's _my_free calls
  pthread_mutex_lock() using THR_LOCK_malloc which is cleaned up in my_end().
include/my_sys.h:
  Bug#23736 Pointer free error in mysqlbinlog
  - Define DYNAMIC_ARRAY beofore MY_TMPDIR
  - Add DYNAMIC_ARRAY to MY_TMP_DIR
mysys/array.c:
  Bug#23736 Pointer free error in mysqlbinlog
  - SAFEMALLOC should not be unconditionally undef'd.
mysys/mf_tempdir.c:
  Bug#23736 Pointer free error in mysqlbinlog
  - Use struct's DYNAMIC_ARRAY.
  - Use DYNAMIC_ARRAY:delete_dynamic function instead of my_free