bump rspec-rails

Gemfile

@@ -197,7 +197,7 @@ group :test do
   gem 'rspec', '~> 3.9.0'
   gem 'rspec-activemodel-mocks', '~> 1.1.0', git: 'https://github.com/rspec/rspec-activemodel-mocks'
   # also add to development group, so "spec" rake task gets loaded
-  gem 'rspec-rails', '~> 4.0.0beta3', group: :development
+  gem 'rspec-rails', '~> 4.0.0.rc1', group: :development
 
   # Retry failures within the same environment
   gem 'retriable', '~> 3.1.1'

Gemfile.lock

@@ -803,13 +803,13 @@ GEM
       rspec-mocks (~> 3.9.0)
     rspec-core (3.9.1)
       rspec-support (~> 3.9.1)
-    rspec-expectations (3.9.0)
+    rspec-expectations (3.9.1)
       diff-lcs (>= 1.2.0, < 2.0)
       rspec-support (~> 3.9.0)
     rspec-mocks (3.9.1)
       diff-lcs (>= 1.2.0, < 2.0)
       rspec-support (~> 3.9.0)
-    rspec-rails (4.0.0.beta4)
+    rspec-rails (4.0.0.rc1)
       actionpack (>= 4.2)
       activesupport (>= 4.2)
       railties (>= 4.2)
@@ -1085,7 +1085,7 @@ DEPENDENCIES
   rspec (~> 3.9.0)
   rspec-activemodel-mocks (~> 1.1.0)!
   rspec-example_disabler!
-  rspec-rails (~> 4.0.0beta3)
+  rspec-rails (~> 4.0.0.rc1)
   rspec-retry (~> 0.6.1)
   rubocop
   ruby-duration (~> 3.2.0)