Timo local changes
Merge branch 'master' of github.com:brainscauseminds/estnltk

* 'master' of github.com:brainscauseminds/estnltk:
  fixed estnltk/wordnet.py import, reworked wordnet/wordnet.py, renamed wordnet/wordnet.py for clarity
Added apply tokenizer test and document importer test
Added simple PyVabamorfAnalyzer test
Added test for detecting wierd tokenizers that yield results where tokens do not match spans
Added basic clause segmenter test