tsearch_core patch for inclusion

http://www.sigaev.ru/misc/tsearch_core-0.43.gz

Changes:
1 Ispell dictionary now supports hunspell dictionary's  format which is used by
   OpenOffice >= 2.0.2
   http://wiki.services.openoffice.org/wiki/Dictionaries
   Changes in format is addressed, basically, to better support of compound words
   ( German, Norwegian ). So, please, test it - we don't know that languages at
   all.
2 added recent fixes of contrib/tsearch2
3 fix usage of fopen/fclose

--
Teodor Sigaev                                   E-mail: teodor@sigaev.ru
                                                    WWW: http://www.sigaev.ru/