openstax/tutor — pull request #9 by kevinburleigh75 (2013-03-30 08:39:04+00:00)
Title: updated debugger gem version to fix travisCI issue

It seems there is a problem with new versions of ruby and the old debugger gem version:
```
Installing debugger-ruby_core_source (1.1.3)
Installing debugger-linecache (1.1.2)
Gem::Installer::ExtensionBuildError: ERROR: Failed to build gem native extension.
```