update Rails 3 tests to use Rails 3 final

Rails 3 is out, and requires no code changes on our end to work
(as far as our tests show :)
(cherry picked from commit da272fc48ffaa808456fe94dd7a3e01bc9799832)

1 files changed, 1 insertions, 1 deletions

diff --git a/Rakefile b/Rakefile
index 833288c..c140b89 100644
--- a/Rakefile
+++ b/Rakefile
@@ -207,7 +207,7 @@ task :isolate do
   status.success? or abort status.inspect
 
   # pure Ruby gems can be shared across all Rubies
-  %w(3.0.0.rc2).each do |rails_ver|
+  %w(3.0.0).each do |rails_ver|
     opts[:path] = "tmp/isolate/rails-#{rails_ver}"
     pid = fork { Isolate.now!(opts) { gem 'rails', rails_ver } }
     _, status = Process.waitpid2(pid)