Paicehusk Stemmer

I have yet to figure out how to modify the xapian-core/languages/sbl-dispatch.h file to include code for the paicehusk stemmer  and so I have commented out the following code in languages/stem.cc file.

case PAICEHUSK:
                            internal=new StemPaiceHusk;
                            return;
Hence,I am using the paicehusk stemmer  externally right now.Please let me know what changes I should make so as to incorporate it into the library.Also,this is my first piece of code for the community and so please let me know whichever parts you find unsatisfactory and I'll modify it and send a new pull request.