pezra/rspec-mode — pull request #60 by tomykaira (2013-05-02 07:15:33+00:00)
Title: Add spring support

This patch is different from hirocaster's in
(https://github.com/hirocaster/rspec-mode/commit/1a06e50f1f6c940e6d998253c0ba81add5aad738)

- Symmetric with other options (checking file existence)
- Use spring if possible
- Do not prefix both spring and zeus even if both are working