Merge pull request #1 from s-mage/master

Add the HMM Tagger
Remote the old code
Add a spec for Myaso::Tagger
Remove useless dependencies from myaso.gemspec
Do not use RDoc
Update CLI
Update README.md [ci skip]
Yeah, and JRuby, too
Bump version to 0.3.1.pre3
Update the Tagger invocation example at README.md [ci skip]
Do not even require RubyGems at bin/
Improve the --eval handling at CLI
Add the CLI specs
Make Invoker better
Invoker should use Open3.popen3 because of JRuby bug
Refine CLI tests
Update tabs in README.md [ci skip]
Add elementary tests