Bump vcap_staging to 0.1.60

- Adds support for users setting RACK_ENV
and RAILS_ENV

Change-Id: Ic967ef479d70a8466739ef6e36b75cc8cf4add7f

Gemfile

@@ -7,7 +7,7 @@ gem 'yajl-ruby', '>= 0.7.9'
 
 gem 'vcap_common', '~> 1.0.8', :git => 'https://github.com/cloudfoundry/vcap-common.git', :ref => 'f6ffe9ad'
 gem 'vcap_logging', '>= 0.1.3', :git => 'https://github.com/cloudfoundry/common.git', :ref => 'b96ec119'
-gem 'vcap_staging', '~> 0.1.59', :git => 'https://github.com/cloudfoundry/vcap-staging.git', :ref => 'ef51c9c1'
+gem 'vcap_staging', '~> 0.1.60', :git => 'https://github.com/cloudfoundry/vcap-staging.git', :ref => '0b9a6c47'
 gem 'vcap-concurrency', '~> 0.1.0', :git => 'https://github.com/cloudfoundry/vcap-concurrency.git', :ref => 'be2bdb9f'
 gem 'stager-client', '~> 0.0.2', :git => 'https://github.com/cloudfoundry/stager-client.git', :ref => 'fdaae720'
 

Gemfile.lock

@@ -44,15 +44,14 @@ GIT
 
 GIT
   remote: https://github.com/cloudfoundry/vcap-staging.git
-  revision: ef51c9c1c2cf35ac93e2d9ff1b9300c4dae3b5a3
-  ref: ef51c9c1
+  revision: 0b9a6c47b42783e10e071328a25150df6943a385
+  ref: 0b9a6c47
   specs:
-    vcap_staging (0.1.59)
+    vcap_staging (0.1.60)
       nokogiri (>= 1.4.4)
       rake
       rspec
       uuidtools (~> 2.1.2)
-      vcap_common (~> 1.0.8)
       yajl-ruby (>= 0.7.9)
 
 GEM
@@ -71,7 +70,7 @@ GEM
       eventmachine (>= 0.12.10)
       json_pure (>= 1.6.1)
       thin (>= 1.3.1)
-    nokogiri (1.5.2)
+    nokogiri (1.5.5)
     posix-spawn (0.3.6)
     rack (1.4.1)
     rake (0.9.2.2)
@@ -111,6 +110,6 @@ DEPENDENCIES
   vcap-concurrency (~> 0.1.0)!
   vcap_common (~> 1.0.8)!
   vcap_logging (>= 0.1.3)!
-  vcap_staging (~> 0.1.59)!
+  vcap_staging (~> 0.1.60)!
   webmock
   yajl-ruby (>= 0.7.9)