A simple yet handy Myaso::Ngrams
Use the Ngrams class instead of the Ngram struct
Merge pull request #6 from s-mage/refactoring

Speed up the learning
Merge branch 'refactoring' of github.com:ustalov/myaso into refactoring

Conflicts:
	lib/myaso/tagger/model.rb
Clarify the Tagger::Model#start_symbol and Tagger::Model#stop_symbol methods
Remove unused indentation in Tagger::Model [ci skip]