Fixes bundler dependency issue for Travis
Fixes #3 - Update Travis

* Removes Ruby 1.9.2 and adds 2.1.0
* Updates Rubinius version
* Sets Bundler caching
Merge pull request #5 from duggiefresh/update-travis

Fixes #3 - Update Travis
Fixed two changes in #3 and #5 that were causing Travis CI to fail.
Updates README to SciRuby build
Fixes #4 - Removes `bin/bio-statsample-timeseries`
Merge pull request #6 from duggiefresh/doug-remove-bin

Fixes #4 - Removes `bin/bio-statsample-timeseries`
Merge pull request #8 from duggiefresh/update-readme-travis

Updates README to SciRuby build