Release 1.1.0

Add support for jruby

* Fix issue#10 - zombie subprocesses left behind due to not closed io…

… streams

* Remove `sanitized_text` method and use `IO.popen` rather than `syst…

…em` to prevent command injection. by @bcoles

* Add support for -k flag to modulate pitch on capital letter words. by @structuralartistry

Version bumped to 0.3.0