rvm has offically depreicated .rvmrc and recommends using .ruby-version and .ruby-gemset instead.

bradly · bradly · commit 56dfc7c5a1a4 · 2013-05-23T09:16:11.000-07:00
diff --git a/.ruby-gemset.sample b/.ruby-gemset.sample
@@ -0,0 +1 @@
+discourse
diff --git a/.ruby-version.sample b/.ruby-version.sample
@@ -0,0 +1 @@
+ruby-2.0.0-p195
diff --git a/.rvmrc.sample b/.rvmrc.sample
