typo in error message text corrected.
new tests added


mysql-test/r/func_compress.result:
  new tests added
mysql-test/t/func_compress.test:
  new tests added
sql/item_strfunc.cc:
  max size of uncompressed data is max_allowed_packet not 8K
sql/share/czech/errmsg.txt:
  typo fixed
sql/share/danish/errmsg.txt:
  typo fixed
sql/share/dutch/errmsg.txt:
  typo fixed
sql/share/english/errmsg.txt:
  typo fixed
sql/share/estonian/errmsg.txt:
  typo fixed
sql/share/french/errmsg.txt:
  typo fixed
sql/share/german/errmsg.txt:
  typo fixed
sql/share/greek/errmsg.txt:
  typo fixed
sql/share/hungarian/errmsg.txt:
  typo fixed
sql/share/italian/errmsg.txt:
  typo fixed
sql/share/japanese/errmsg.txt:
  typo fixed
sql/share/korean/errmsg.txt:
  typo fixed
sql/share/norwegian-ny/errmsg.txt:
  typo fixed
sql/share/norwegian/errmsg.txt:
  typo fixed
sql/share/polish/errmsg.txt:
  typo fixed
sql/share/portuguese/errmsg.txt:
  typo fixed
sql/share/romanian/errmsg.txt:
  typo fixed
sql/share/russian/errmsg.txt:
  typo fixed
sql/share/serbian/errmsg.txt:
  typo fixed
sql/share/slovak/errmsg.txt:
  typo fixed
sql/share/spanish/errmsg.txt:
  typo fixed
sql/share/swedish/errmsg.txt:
  typo fixed
sql/share/ukrainian/errmsg.txt:
  typo fixed