Rollback rspec to 2.13.1

Lots of tests were failing and I'm not willing to dig into them right
now =/

Gemfile

@@ -15,7 +15,7 @@ end
 
 group :development, :test do
   gem 'rake'
-  gem 'rspec'
+  gem 'rspec',       '~> 2.13.0'
   gem 'rspec-fire',  require: 'rspec/fire'
   gem 'rspec-spies', require: false
   gem 'coveralls',   require: false

Gemfile.lock

@@ -78,16 +78,16 @@ GEM
       ffi (>= 0.5.0)
     rest-client (1.6.7)
       mime-types (>= 1.16)
-    rspec (2.14.1)
-      rspec-core (~> 2.14.0)
-      rspec-expectations (~> 2.14.0)
-      rspec-mocks (~> 2.14.0)
-    rspec-core (2.14.2)
-    rspec-expectations (2.14.0)
+    rspec (2.13.0)
+      rspec-core (~> 2.13.0)
+      rspec-expectations (~> 2.13.0)
+      rspec-mocks (~> 2.13.0)
+    rspec-core (2.13.1)
+    rspec-expectations (2.13.0)
       diff-lcs (>= 1.1.3, < 2.0)
     rspec-fire (1.2.0)
       rspec (~> 2.11)
-    rspec-mocks (2.14.1)
+    rspec-mocks (2.13.1)
     rspec-spies (2.1.4)
       rspec (~> 2.0)
     simplecov (0.7.1)
@@ -107,7 +107,7 @@ DEPENDENCIES
   guard-rspec
   rake
   rb-inotify
-  rspec
+  rspec (~> 2.13.0)
   rspec-fire
   rspec-spies
   vagrant!