- Fixed bugs in BinaryMaxentFeatureEncoding.encode() for unseen   features. - Changed BinaryMaxentFeatureEncoding.length() to just return   self._length, rather than trying to recompute it (which it was   doing wrong anyway)
- Fixed bugs in BinaryMaxentFeatureEncoding.encode() for unseen
  features.
- Changed BinaryMaxentFeatureEncoding.length() to just return
  self._length, rather than trying to recompute it (which it was
  doing wrong anyway)


svn/trunk@6292

nltk/nltk,nltk/nltk,nltk/nltk