delete word-feature for now.
fix type
block the usage of the word itself as feature
...
add surface char str (word) based features (by calling the feature generator of base_wordPredict model) as additional features in merge-action prediction model.
 base_wordPredict_predict.py the code to use the maxent model trained with base_wordPredict_maxent_instance_gen  to predict  valid words from testing corpus (raw corpus)
trivial
Merge pull request #2 from biye2014/master

merge two branch