- Added Spanish support for the ratio_to_passive_verbs module.
Pattern to capture forms of verb 'ser' as auxiliary in passive constructions changed and tested.
Regular expression matching takes three columns, according to freeling.
- Using codecs to read files in utf-8 encoding.
- Added third column to freeling files.
Added option to provide a single file as inpput to ml-translationese
Fixed parsing of sentences
- IMPORTANT: the end of any freeling file *must* end with at least
  two empty lines, otherwise the last sentence will not be considered.
Freeling files as processed as being ended by a #
analysis.pos_tags() returns three values instead of 2
- Fixed this in the Spanish ratio_to_passive_verbs.py
Added support for the Spanish syllable_ratio module
Fixed syntax error in core/engine.py
Added "mean_sentence_length" key to the resutsModel dictionary in core/engie.py