Add spring and fix controller specs

Gemfile.lock

@@ -37,7 +37,7 @@ GIT
 
 GIT
   remote: git://github.com/bterkuile/simply_stored.git
-  revision: a4b672f68cbcf275aa10fc5014a3763238691956
+  revision: e0e72e8e73c59666191d578408572ed8f5de9e42
   specs:
     simply_stored (1.0.0)
       activesupport
@@ -322,6 +322,9 @@ GEM
     rspec-expectations (3.0.2)
       diff-lcs (>= 1.2.0, < 2.0)
       rspec-support (~> 3.0.0)
+    rspec-its (1.0.1)
+      rspec-core (>= 2.99.0.beta1)
+      rspec-expectations (>= 2.99.0.beta1)
     rspec-mocks (3.0.2)
       rspec-support (~> 3.0.0)
     rspec-rails (3.0.1)
@@ -357,6 +360,9 @@ GEM
       railties (>= 3.0, < 4.2)
       slim (~> 2.0)
     slop (3.5.0)
+    spring (1.1.3)
+    spring-commands-rspec (1.0.2)
+      spring (>= 0.9.1)
     sprockets (2.11.0)
       hike (~> 1.2)
       multi_json (~> 1.0)
@@ -384,7 +390,7 @@ GEM
     treetop (1.4.15)
       polyglot
       polyglot (>= 0.3.1)
-    turnip (1.2.1)
+    turnip (1.2.2)
       gherkin (>= 2.5)
       rspec (>= 2.0, < 4.0)
     tzinfo (1.2.1)
@@ -443,12 +449,15 @@ DEPENDENCIES
   rack-cors
   rails (= 4.1.4)
   rqrcode
+  rspec-its
   rspec-rails
   sass-rails (~> 4.0.2)
   simple_form
   simplecov
   simply_stored!
   slim-rails
+  spring
+  spring-commands-rspec
   thin
   turnip
   uglifier (>= 1.0.3)