std::unordered_set replaces std::set for m_seenPosition.
DistortionFunctionScorer dyn_cast removed in FF.
move OutputBest() to Syntax::Manager
move OutputBest() to Incremental::Manager
move OutputBest() to ChartManager
const some args. Ready to internalize n-best creation into Managers
Merge ../mosesdecoder.merge-cmd
Fix #85 by changing the default LM.  Hieu said it's ok in the issue.
Merge pull request #87 from marxin/unordered-set

boost::unordered_set replaces std::set for m_seenPosition.
Merge pull request #86 from marxin/distortion-scorer-no-dyncast

DistortionFunctionScorer dyn_cast removed in FF.
Merge remote-tracking branch 'upstream/master'