optimize,util: moving parForeach and friends from optimize.TrainerHelpers to util.Threading
app.nlp.segment: Fix bug in ClearSegmenter where sentences were being eaten
Merge pull request #30 from alextp/clear-segmenter-bug

app.nlp.segment: Fix bug in ClearSegmenter where sentences were being eaten
Merge pull request #27 from alextp/move-parallel-foreach

optimize,util: moving parForeach and friends from optimize.TrainerHelpers to util.Threading
fix merge conflict