Properly fix rbx

As suggested by @bf4 at http://www.benjaminfleischer.com/2013/12/05/testing-rubinius-on-travis-ci/
Merge pull request #28 from markijbema/really-fix-rbx

Really fix rbx
Used a truncate instead of delete-touch combo, to empty  file. (+boyscout)
Merge pull request #30 from jjoos/master

Used a truncate instead of delete-touch combo, to empty  file. (+boyscou...
Bump version