boost build fix for boost::foreach

libtoki/layers/lexiconclassify.h

libtoki/layers/regexpclassify.cpp

libtoki/layers/tokenlayer.cpp

libtoki/srx/document.cpp

libtoki/srx/segmenter.cpp

libtoki/tokenizer/layertokenizer.cpp

libtoki/util/confignode.cpp

libtoki/util/settings.cpp

tests/compare.cpp

tests/conf.cpp