[fix] multi-threaded bug in segmentor
[add] decode context class to solve multi-threaded error
[fix] words not clean problems.
[fix] customized multithreaded fix.
[fix] cancel BOOST_FOREACH in srl module.
[fix] .
[fix] multithread compiling error result from bad lib output name.
.
[fix] use bcp (boost official submodule extraction toolkits) to extract boost.regex, boost.function, boost.find, boost.multiarray and reship a 1.56.0 version BOOST. fix the match_results<> racing bug in old version BOOST
[cont.] clear up