Adding description (Implementation Notes) for HTTP operations

Gemfile.lock

@@ -1,9 +1,9 @@
 PATH
   remote: .
   specs:
-    swagger_rails (1.0.0.pre.beta2)
+    swagger_rails (1.0.0.pre.beta3)
       rack
-      rails (>= 3.1, < 5)
+      rails (>= 3.1, <= 5)
 
 GEM
   remote: https://rubygems.org/
@@ -54,6 +54,7 @@ GEM
     mime-types (1.25.1)
     multi_json (1.11.2)
     polyglot (0.3.5)
+    power_assert (0.2.6)
     pry (0.10.3)
       coderay (~> 1.1.0)
       method_source (~> 0.8.1)
@@ -107,12 +108,14 @@ GEM
       rack (~> 1.0)
       tilt (~> 1.1, != 1.3.0)
     sqlite3 (1.3.11)
+    test-unit (3.1.5)
+      power_assert
     thor (0.19.1)
     tilt (1.4.1)
     treetop (1.4.15)
       polyglot
       polyglot (>= 0.3.1)
-    tzinfo (0.3.50)
+    tzinfo (0.3.51)
 
 PLATFORMS
   ruby
@@ -123,6 +126,7 @@ DEPENDENCIES
   rspec-rails (~> 3.0)
   sqlite3
   swagger_rails!
+  test-unit
 
 BUNDLED WITH
-   1.10.6
+   1.12.5