diff --git a/test/vcr_cassettes/subscriptions_admin_create_success.yml b/test/vcr_cassettes/subscriptions_admin_create_success.yml
index 2a7c2bf10..e11970830 100644
--- a/test/vcr_cassettes/subscriptions_admin_create_success.yml
+++ b/test/vcr_cassettes/subscriptions_admin_create_success.yml
@@ -20,7 +20,7 @@ http_interactions:
       X-Stripe-Client-User-Agent:
       - '{"bindings_version":"1.30.2","lang":"ruby","lang_version":"2.3.0 p0 (2015-12-25)","platform":"x86_64-linux","engine":"ruby","publisher":"stripe","uname":"Linux
         version 3.13.0-83-generic (buildd@lgw01-55) (gcc version 4.8.2 (Ubuntu 4.8.2-19ubuntu1)
-        ) #127-Ubuntu SMP Fri Mar 11 00:25:37 UTC 2016","hostname":"sylvain-sleede-pc"}'
+        ) #127-Ubuntu SMP Fri Mar 11 00:25:37 UTC 2016","hostname":"integration"}'
   response:
     status:
       code: 200
@@ -177,7 +177,7 @@ http_interactions:
             "url": "/v1/customers/cus_8Di1wjdVktv5kt/subscriptions"
           }
         }
-    http_version: 
+    http_version:
   recorded_at: Wed, 06 Apr 2016 16:16:21 GMT
 - request:
     method: post
@@ -199,7 +199,7 @@ http_interactions:
       X-Stripe-Client-User-Agent:
       - '{"bindings_version":"1.30.2","lang":"ruby","lang_version":"2.3.0 p0 (2015-12-25)","platform":"x86_64-linux","engine":"ruby","publisher":"stripe","uname":"Linux
         version 3.13.0-83-generic (buildd@lgw01-55) (gcc version 4.8.2 (Ubuntu 4.8.2-19ubuntu1)
-        ) #127-Ubuntu SMP Fri Mar 11 00:25:37 UTC 2016","hostname":"sylvain-sleede-pc"}'
+        ) #127-Ubuntu SMP Fri Mar 11 00:25:37 UTC 2016","hostname":"integration"}'
       Content-Length:
       - '42'
   response:
@@ -269,7 +269,7 @@ http_interactions:
           "trial_end": null,
           "trial_start": null
         }
-    http_version: 
+    http_version:
   recorded_at: Wed, 06 Apr 2016 16:16:22 GMT
 - request:
     method: get
@@ -291,7 +291,7 @@ http_interactions:
       X-Stripe-Client-User-Agent:
       - '{"bindings_version":"1.30.2","lang":"ruby","lang_version":"2.3.0 p0 (2015-12-25)","platform":"x86_64-linux","engine":"ruby","publisher":"stripe","uname":"Linux
         version 3.13.0-83-generic (buildd@lgw01-55) (gcc version 4.8.2 (Ubuntu 4.8.2-19ubuntu1)
-        ) #127-Ubuntu SMP Fri Mar 11 00:25:37 UTC 2016","hostname":"sylvain-sleede-pc"}'
+        ) #127-Ubuntu SMP Fri Mar 11 00:25:37 UTC 2016","hostname":"integration"}'
   response:
     status:
       code: 200
@@ -405,7 +405,7 @@ http_interactions:
           "has_more": true,
           "url": "/v1/invoices"
         }
-    http_version: 
+    http_version:
   recorded_at: Wed, 06 Apr 2016 16:16:23 GMT
 - request:
     method: get
@@ -427,7 +427,7 @@ http_interactions:
       X-Stripe-Client-User-Agent:
       - '{"bindings_version":"1.30.2","lang":"ruby","lang_version":"2.3.0 p0 (2015-12-25)","platform":"x86_64-linux","engine":"ruby","publisher":"stripe","uname":"Linux
         version 3.13.0-83-generic (buildd@lgw01-55) (gcc version 4.8.2 (Ubuntu 4.8.2-19ubuntu1)
-        ) #127-Ubuntu SMP Fri Mar 11 00:25:37 UTC 2016","hostname":"sylvain-sleede-pc"}'
+        ) #127-Ubuntu SMP Fri Mar 11 00:25:37 UTC 2016","hostname":"integration"}'
   response:
     status:
       code: 200
@@ -617,7 +617,7 @@ http_interactions:
             "url": "/v1/customers/cus_8Di1wjdVktv5kt/subscriptions"
           }
         }
-    http_version: 
+    http_version:
   recorded_at: Wed, 06 Apr 2016 16:16:25 GMT
 - request:
     method: get
@@ -639,7 +639,7 @@ http_interactions:
       X-Stripe-Client-User-Agent:
       - '{"bindings_version":"1.30.2","lang":"ruby","lang_version":"2.3.0 p0 (2015-12-25)","platform":"x86_64-linux","engine":"ruby","publisher":"stripe","uname":"Linux
         version 3.13.0-83-generic (buildd@lgw01-55) (gcc version 4.8.2 (Ubuntu 4.8.2-19ubuntu1)
-        ) #127-Ubuntu SMP Fri Mar 11 00:25:37 UTC 2016","hostname":"sylvain-sleede-pc"}'
+        ) #127-Ubuntu SMP Fri Mar 11 00:25:37 UTC 2016","hostname":"integration"}'
   response:
     status:
       code: 200
@@ -707,7 +707,7 @@ http_interactions:
           "trial_end": null,
           "trial_start": null
         }
-    http_version: 
+    http_version:
   recorded_at: Wed, 06 Apr 2016 16:16:25 GMT
 - request:
     method: delete
@@ -729,7 +729,7 @@ http_interactions:
       X-Stripe-Client-User-Agent:
       - '{"bindings_version":"1.30.2","lang":"ruby","lang_version":"2.3.0 p0 (2015-12-25)","platform":"x86_64-linux","engine":"ruby","publisher":"stripe","uname":"Linux
         version 3.13.0-83-generic (buildd@lgw01-55) (gcc version 4.8.2 (Ubuntu 4.8.2-19ubuntu1)
-        ) #127-Ubuntu SMP Fri Mar 11 00:25:37 UTC 2016","hostname":"sylvain-sleede-pc"}'
+        ) #127-Ubuntu SMP Fri Mar 11 00:25:37 UTC 2016","hostname":"integration"}'
   response:
     status:
       code: 200
@@ -797,6 +797,6 @@ http_interactions:
           "trial_end": null,
           "trial_start": null
         }
-    http_version: 
+    http_version:
   recorded_at: Wed, 06 Apr 2016 16:16:26 GMT
 recorded_with: VCR 3.0.1
diff --git a/test/vcr_cassettes/subscriptions_user_create_failed.yml b/test/vcr_cassettes/subscriptions_user_create_failed.yml
index b32669f29..47509a3e3 100644
--- a/test/vcr_cassettes/subscriptions_user_create_failed.yml
+++ b/test/vcr_cassettes/subscriptions_user_create_failed.yml
@@ -20,7 +20,7 @@ http_interactions:
       X-Stripe-Client-User-Agent:
       - '{"bindings_version":"1.30.2","lang":"ruby","lang_version":"2.3.0 p0 (2015-12-25)","platform":"x86_64-linux","engine":"ruby","publisher":"stripe","uname":"Linux
         version 4.4.5-1-ARCH (builduser@tobias) (gcc version 5.3.0 (GCC) ) #1 SMP
-        PREEMPT Thu Mar 10 07:38:19 CET 2016","hostname":"Sylvain-desktop"}'
+        PREEMPT Thu Mar 10 07:38:19 CET 2016","hostname":"integration"}'
       Content-Length:
       - '81'
   response:
@@ -90,7 +90,7 @@ http_interactions:
           "type": "card",
           "used": false
         }
-    http_version: 
+    http_version:
   recorded_at: Mon, 11 Apr 2016 15:43:39 GMT
 - request:
     method: get
@@ -112,7 +112,7 @@ http_interactions:
       X-Stripe-Client-User-Agent:
       - '{"bindings_version":"1.30.2","lang":"ruby","lang_version":"2.3.0 p0 (2015-12-25)","platform":"x86_64-linux","engine":"ruby","publisher":"stripe","uname":"Linux
         version 4.4.5-1-ARCH (builduser@tobias) (gcc version 5.3.0 (GCC) ) #1 SMP
-        PREEMPT Thu Mar 10 07:38:19 CET 2016","hostname":"Sylvain-desktop"}'
+        PREEMPT Thu Mar 10 07:38:19 CET 2016","hostname":"integration"}'
   response:
     status:
       code: 200
@@ -180,6 +180,6 @@ http_interactions:
           "type": "card",
           "used": false
         }
-    http_version: 
+    http_version:
   recorded_at: Mon, 11 Apr 2016 15:43:40 GMT
 recorded_with: VCR 3.0.1
diff --git a/test/vcr_cassettes/subscriptions_user_create_success.yml b/test/vcr_cassettes/subscriptions_user_create_success.yml
index 4f945c009..5e3d4f9d7 100644
--- a/test/vcr_cassettes/subscriptions_user_create_success.yml
+++ b/test/vcr_cassettes/subscriptions_user_create_success.yml
@@ -20,7 +20,7 @@ http_interactions:
       X-Stripe-Client-User-Agent:
       - '{"bindings_version":"1.30.2","lang":"ruby","lang_version":"2.3.0 p0 (2015-12-25)","platform":"x86_64-linux","engine":"ruby","publisher":"stripe","uname":"Linux
         version 4.4.5-1-ARCH (builduser@tobias) (gcc version 5.3.0 (GCC) ) #1 SMP
-        PREEMPT Thu Mar 10 07:38:19 CET 2016","hostname":"Sylvain-desktop"}'
+        PREEMPT Thu Mar 10 07:38:19 CET 2016","hostname":"integration"}'
       Content-Length:
       - '81'
   response:
@@ -90,7 +90,7 @@ http_interactions:
           "type": "card",
           "used": false
         }
-    http_version: 
+    http_version:
   recorded_at: Mon, 11 Apr 2016 15:43:41 GMT
 - request:
     method: get
@@ -112,7 +112,7 @@ http_interactions:
       X-Stripe-Client-User-Agent:
       - '{"bindings_version":"1.30.2","lang":"ruby","lang_version":"2.3.0 p0 (2015-12-25)","platform":"x86_64-linux","engine":"ruby","publisher":"stripe","uname":"Linux
         version 4.4.5-1-ARCH (builduser@tobias) (gcc version 5.3.0 (GCC) ) #1 SMP
-        PREEMPT Thu Mar 10 07:38:19 CET 2016","hostname":"Sylvain-desktop"}'
+        PREEMPT Thu Mar 10 07:38:19 CET 2016","hostname":"integration"}'
   response:
     status:
       code: 200
@@ -180,7 +180,7 @@ http_interactions:
           "type": "card",
           "used": false
         }
-    http_version: 
+    http_version:
   recorded_at: Mon, 11 Apr 2016 15:43:42 GMT
 - request:
     method: get
@@ -202,7 +202,7 @@ http_interactions:
       X-Stripe-Client-User-Agent:
       - '{"bindings_version":"1.30.2","lang":"ruby","lang_version":"2.3.0 p0 (2015-12-25)","platform":"x86_64-linux","engine":"ruby","publisher":"stripe","uname":"Linux
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-        PREEMPT Thu Mar 10 07:38:19 CET 2016","hostname":"Sylvain-desktop"}'
+        PREEMPT Thu Mar 10 07:38:19 CET 2016","hostname":"integration"}'
   response:
     status:
       code: 200
@@ -361,7 +361,7 @@ http_interactions:
         ICAgICAgfQogICAgXSwKICAgICJoYXNfbW9yZSI6IGZhbHNlLAogICAgInRv
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-    http_version: 
+    http_version:
   recorded_at: Mon, 11 Apr 2016 15:43:42 GMT
 - request:
     method: post
@@ -383,7 +383,7 @@ http_interactions:
       X-Stripe-Client-User-Agent:
       - '{"bindings_version":"1.30.2","lang":"ruby","lang_version":"2.3.0 p0 (2015-12-25)","platform":"x86_64-linux","engine":"ruby","publisher":"stripe","uname":"Linux
         version 4.4.5-1-ARCH (builduser@tobias) (gcc version 5.3.0 (GCC) ) #1 SMP
-        PREEMPT Thu Mar 10 07:38:19 CET 2016","hostname":"Sylvain-desktop"}'
+        PREEMPT Thu Mar 10 07:38:19 CET 2016","hostname":"integration"}'
       Content-Length:
       - '76'
   response:
@@ -453,7 +453,7 @@ http_interactions:
           "trial_end": null,
           "trial_start": null
         }
-    http_version: 
+    http_version:
   recorded_at: Mon, 11 Apr 2016 15:43:44 GMT
 - request:
     method: get
@@ -475,7 +475,7 @@ http_interactions:
       X-Stripe-Client-User-Agent:
       - '{"bindings_version":"1.30.2","lang":"ruby","lang_version":"2.3.0 p0 (2015-12-25)","platform":"x86_64-linux","engine":"ruby","publisher":"stripe","uname":"Linux
         version 4.4.5-1-ARCH (builduser@tobias) (gcc version 5.3.0 (GCC) ) #1 SMP
-        PREEMPT Thu Mar 10 07:38:19 CET 2016","hostname":"Sylvain-desktop"}'
+        PREEMPT Thu Mar 10 07:38:19 CET 2016","hostname":"integration"}'
   response:
     status:
       code: 200
@@ -589,7 +589,7 @@ http_interactions:
           "has_more": true,
           "url": "/v1/invoices"
         }
-    http_version: 
+    http_version:
   recorded_at: Mon, 11 Apr 2016 15:43:47 GMT
 - request:
     method: get
@@ -611,7 +611,7 @@ http_interactions:
       X-Stripe-Client-User-Agent:
       - '{"bindings_version":"1.30.2","lang":"ruby","lang_version":"2.3.0 p0 (2015-12-25)","platform":"x86_64-linux","engine":"ruby","publisher":"stripe","uname":"Linux
         version 4.4.5-1-ARCH (builduser@tobias) (gcc version 5.3.0 (GCC) ) #1 SMP
-        PREEMPT Thu Mar 10 07:38:19 CET 2016","hostname":"Sylvain-desktop"}'
+        PREEMPT Thu Mar 10 07:38:19 CET 2016","hostname":"integration"}'
   response:
     status:
       code: 200
@@ -793,7 +793,7 @@ http_interactions:
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-    http_version: 
+    http_version:
   recorded_at: Mon, 11 Apr 2016 15:43:48 GMT
 - request:
     method: get
@@ -815,7 +815,7 @@ http_interactions:
       X-Stripe-Client-User-Agent:
       - '{"bindings_version":"1.30.2","lang":"ruby","lang_version":"2.3.0 p0 (2015-12-25)","platform":"x86_64-linux","engine":"ruby","publisher":"stripe","uname":"Linux
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-        PREEMPT Thu Mar 10 07:38:19 CET 2016","hostname":"Sylvain-desktop"}'
+        PREEMPT Thu Mar 10 07:38:19 CET 2016","hostname":"integration"}'
   response:
     status:
       code: 200
@@ -883,7 +883,7 @@ http_interactions:
           "trial_end": null,
           "trial_start": null
         }
-    http_version: 
+    http_version:
   recorded_at: Mon, 11 Apr 2016 15:43:49 GMT
 - request:
     method: delete
@@ -905,7 +905,7 @@ http_interactions:
       X-Stripe-Client-User-Agent:
       - '{"bindings_version":"1.30.2","lang":"ruby","lang_version":"2.3.0 p0 (2015-12-25)","platform":"x86_64-linux","engine":"ruby","publisher":"stripe","uname":"Linux
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-        PREEMPT Thu Mar 10 07:38:19 CET 2016","hostname":"Sylvain-desktop"}'
+        PREEMPT Thu Mar 10 07:38:19 CET 2016","hostname":"integration"}'
   response:
     status:
       code: 200
@@ -973,6 +973,6 @@ http_interactions:
           "trial_end": null,
           "trial_start": null
         }
-    http_version: 
+    http_version:
   recorded_at: Mon, 11 Apr 2016 15:43:50 GMT
 recorded_with: VCR 3.0.1
diff --git a/test/vcr_cassettes/subscriptions_user_renew_failed.yml b/test/vcr_cassettes/subscriptions_user_renew_failed.yml
index 29e03a51c..8beb57922 100644
--- a/test/vcr_cassettes/subscriptions_user_renew_failed.yml
+++ b/test/vcr_cassettes/subscriptions_user_renew_failed.yml
@@ -20,7 +20,7 @@ http_interactions:
       X-Stripe-Client-User-Agent:
       - '{"bindings_version":"1.30.2","lang":"ruby","lang_version":"2.3.0 p0 (2015-12-25)","platform":"x86_64-linux","engine":"ruby","publisher":"stripe","uname":"Linux
         version 4.4.5-1-ARCH (builduser@tobias) (gcc version 5.3.0 (GCC) ) #1 SMP
-        PREEMPT Thu Mar 10 07:38:19 CET 2016","hostname":"Sylvain-desktop"}'
+        PREEMPT Thu Mar 10 07:38:19 CET 2016","hostname":"integration"}'
   response:
     status:
       code: 400
@@ -60,7 +60,7 @@ http_interactions:
             "param": "token"
           }
         }
-    http_version: 
+    http_version:
   recorded_at: Mon, 11 Apr 2016 15:47:34 GMT
 - request:
     method: get
@@ -82,7 +82,7 @@ http_interactions:
       X-Stripe-Client-User-Agent:
       - '{"bindings_version":"1.30.2","lang":"ruby","lang_version":"2.3.0 p0 (2015-12-25)","platform":"x86_64-linux","engine":"ruby","publisher":"stripe","uname":"Linux
         version 4.4.5-1-ARCH (builduser@tobias) (gcc version 5.3.0 (GCC) ) #1 SMP
-        PREEMPT Thu Mar 10 07:38:19 CET 2016","hostname":"Sylvain-desktop"}'
+        PREEMPT Thu Mar 10 07:38:19 CET 2016","hostname":"integration"}'
   response:
     status:
       code: 200
@@ -305,7 +305,7 @@ http_interactions:
             "url": "/v1/customers/cus_8E2ys9zDZgetWX/subscriptions"
           }
         }
-    http_version: 
+    http_version:
   recorded_at: Mon, 11 Apr 2016 15:47:35 GMT
 - request:
     method: post
@@ -327,7 +327,7 @@ http_interactions:
       X-Stripe-Client-User-Agent:
       - '{"bindings_version":"1.30.2","lang":"ruby","lang_version":"2.3.0 p0 (2015-12-25)","platform":"x86_64-linux","engine":"ruby","publisher":"stripe","uname":"Linux
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-        PREEMPT Thu Mar 10 07:38:19 CET 2016","hostname":"Sylvain-desktop"}'
+        PREEMPT Thu Mar 10 07:38:19 CET 2016","hostname":"integration"}'
       Content-Length:
       - '66'
   response:
@@ -369,6 +369,6 @@ http_interactions:
             "param": "card"
           }
         }
-    http_version: 
+    http_version:
   recorded_at: Mon, 11 Apr 2016 15:47:36 GMT
 recorded_with: VCR 3.0.1