mysql_options() with MYSQL_OPT_USE_THREAD_SPECIFIC_MEMORY

include/mysql.h:
  Added MYSQL_OPT_USE_THREAD_SPECIFIC_MEMORY
include/mysql.h.pp:
  Updated file
sql-common/client.c:
  Marked client memory as THREAD_SPECIFIC
sql/event_db_repository.cc:
  Fixed compiler warning
sql/slave.cc:
  Marked client memory as THREAD_SPECIFIC
storage/federatedx/federatedx_io_mysql.cc:
  Marked client memory as THREAD_SPECIFIC
storage/federatedx/ha_federatedx.cc:
  Marked client memory as THREAD_SPECIFIC
storage/sphinx/ha_sphinx.cc:
  Marked client memory as THREAD_SPECIFIC