Problem: Temporary buffer which is used for quoting and escaping
  was initialized to character set utf8, and thus didn't allow
  to store data in other character sets.
  Fix: changing character set of the buffer to be able to
  store any arbitrary sequence of bytes.


mysql-test/r/csv.result:
  Adding test case
mysql-test/t/csv.test:
  Adding test case
sql/examples/ha_tina.cc:
  Changing character set of the buffer to "binary".