saturnflyer/casting — pull request #12 by sanemat (2013-06-01 10:50:17+00:00)
Title: Remove ruby-head from travis

"ruby-head" in travis is not ruby-head, behind from Ruby 2.0.0-p0 !
https://travis-ci.org/saturnflyer/casting/jobs/7683284
```
$ ruby --version
ruby 2.0.0dev (2012-12-12) [x86_64-linux]
```