little suggestion

[tian_huisohu#pop3.sohu.com]

Hi abiword developer,
        In abiword/wv/decode_xxxx.c some memory leek.I think should add  in line 544
    wvFree(bkd);
    wvFree(posBKD);
    wvFree(ftxbx);
    wvFree(txbxTxt); 
When runing at WIN32 it should add 
   wvReleasePAPX_FKP (&para_fkp);
   wvReleaseCHPX_FKP (&char_fkp);   

   external_wvReleasePAPX_FKP ();
   external_wvReleaseCHPX_FKP();