solnic/virtus — pull request #141 by shingara (2012-12-18 08:53:36+00:00)
Title: Fix incompatibilities between rake in devtools and virtus

Since commit :
https://github.com/datamapper/devtools/commit/6f2006cfe7942d74173058f678b78b329d3ba2db

We need have rake 10.0 like dependencies. So we have 2 choices.

1) Fix devtools to previous commit
2) Update rake to 10.0 in virtus.

This commit do the second choice.