parse-de-bitpar.perl: fix special char handling
parse-de-bitpar.perl: fix special char handling

Unescape special characters in input to BitPar and then re-escape
in output.

emjotde/mosesdecoder_nmt,emjotde/mosesdecoder_nmt,alvations/mosesdecoder,tofula/mosesdecoder,moses-smt/mosesdecoder,hychyc07/mosesdecoder,hychyc07/mosesdecoder,moses-smt/mosesdecoder,pjwilliams/mosesdecoder,pjwilliams/mosesdecoder,KonceptGeek/mosesdecoder,pjwilliams/mosesdecoder,emjotde/mosesdecoder_nmt,alvations/mosesdecoder,tofula/mosesdecoder,emjotde/mosesdecoder_nmt,tofula/mosesdecoder,emjotde/mosesdecoder_nmt,hychyc07/mosesdecoder,hychyc07/mosesdecoder,pjwilliams/mosesdecoder,alvations/mosesdecoder,emjotde/mosesdecoder_nmt,KonceptGeek/mosesdecoder,pjwilliams/mosesdecoder,alvations/mosesdecoder,alvations/mosesdecoder,moses-smt/mosesdecoder,alvations/mosesdecoder,moses-smt/mosesdecoder,tofula/mosesdecoder,moses-smt/mosesdecoder,pjwilliams/mosesdecoder,hychyc07/mosesdecoder,pjwilliams/mosesdecoder,alvations/mosesdecoder,pjwilliams/mosesdecoder,emjotde/mosesdecoder_nmt,alvations/mosesdecoder,KonceptGeek/mosesdecoder,hychyc07/mosesdecoder,pjwilliams/mosesdecoder,tofula/mosesdecoder,tofula/mosesdecoder,moses-smt/mosesdecoder,alvations/mosesdecoder,moses-smt/mosesdecoder,tofula/mosesdecoder,moses-smt/mosesdecoder,KonceptGeek/mosesdecoder,emjotde/mosesdecoder_nmt,KonceptGeek/mosesdecoder,moses-smt/mosesdecoder,hychyc07/mosesdecoder,emjotde/mosesdecoder_nmt,moses-smt/mosesdecoder,tofula/mosesdecoder,moses-smt/mosesdecoder,hychyc07/mosesdecoder,hychyc07/mosesdecoder,KonceptGeek/mosesdecoder,tofula/mosesdecoder,tofula/mosesdecoder,KonceptGeek/mosesdecoder,emjotde/mosesdecoder_nmt,alvations/mosesdecoder,KonceptGeek/mosesdecoder,pjwilliams/mosesdecoder,alvations/mosesdecoder,KonceptGeek/mosesdecoder,tofula/mosesdecoder,KonceptGeek/mosesdecoder,hychyc07/mosesdecoder