mysql-test/r/federated.result:
  new test results
mysql-test/t/federated.test:
  added order by, group by
sql/ha_federated.cc:
  - added 'scheme' to URL
  - added proper escaping
  - made sure &my_charset_bin is being used throughout handler
  - made sure create_table catches improper URL in comment upon table creation
sql/ha_federated.h:
  added scheme to share