added doxygen_comments for Threaded_Context
added doxygen_comments for Threaded_Context

finnhaedicke/metaSMT,agra-uni-bremen/metaSMT,hoangmle/metaSMT,nbruns1/metaSMT,hoangmle/metaSMT,finnhaedicke/metaSMT,finnhaedicke/metaSMT,nbruns1/metaSMT,hoangmle/metaSMT,nbruns1/metaSMT,agra-uni-bremen/metaSMT,agra-uni-bremen/metaSMT