- Fixed Partition engine to store CONNECTION string for partitions.
  Removed HA_NO_PARTITION flag from FederatedX.
  Added test 'federated_partition' to suite.
- lp:#585688 - maridb crashes in federatedx code
  FederatedX handler instances, created on one thread and used on
  another thread (via table cache) when "show table status" is executed
  crashed because txn member was not initialized for current thread.
  Added test 'federated_bug_585688' to suite.

Author for the patch is Antony Curtis

mysql-test/suite/federated/federated_bug_585688.result:
  Test for lp:585688
mysql-test/suite/federated/federated_bug_585688.test:
  Test for lp:585688
mysql-test/suite/federated/federated_partition-slave.opt:
  Test for partition support in federatedx
mysql-test/suite/federated/federated_partition.result:
  Test for partition support in federatedx
mysql-test/suite/federated/federated_partition.test:
  Test for partition support in federatedx
mysql-test/t/partition_federated.test:
  Updated error message
sql/ha_partition.cc:
  Added support for connection strings to partitions for federatedx
sql/ha_partition.h:
  Added support for connection strings to partitions for federatedx
sql/partition_element.h:
  Added support for connection strings to partitions for federatedx
sql/sql_yacc.yy:
  Added support for connection strings to partitions for federatedx
storage/federatedx/ha_federatedx.cc:
  Added support for partitions.
  FederatedX handler instances, created on one thread and used on another thread (via table cache) when "show table status"
  is executed crashed because txn member was not initialized for current thread.