Added aspect feature.
Added a few dependencies from the Stanford Dependencies Manual.
Refactored a bit.
Writing new cached sentences in __exit__(). Therefore we need to use the with statement from now on.
Got all dependencies used in our data and using this list for indexing now.
Smarter way of saving to pickle file; No more memory errors.
Script to get all used dependency types.
Only writing back to pickle file if necessary.
Added Nlp_persistence.close() method. Needed when with statement can't be used in a comfortable way.
Trying out dependency_is_root feature in isolation.
Added parent attribute to Timex objects.
Fixed bug in is_root().
Handling timeouts and change in interface.
Splitted up dependency features.