update broker api version

- version from poc to v1.
- cloud controller route update.

Change-Id: Id3074c990187acf4ab12d4646d29a2250e76fa1b

cloud_controller/config/routes.rb

@@ -53,7 +53,7 @@
   get    'services/v1/binding_tokens/:binding_token' => 'binding_tokens#get',      :as => :binding_token_get,      :binding_token => /[^\/]+/
   delete 'services/v1/binding_tokens/:binding_token' => 'binding_tokens#delete',   :as => :binding_token_delete,   :binding_token => /[^\/]+/
   # Brokered Services
-  get    'brokered_services/poc/offerings' => 'services#list_brokered_services',   :as => :service_list_brokered_services
+  get    'brokered_services/v1/offerings' => 'services#list_brokered_services',   :as => :service_list_brokered_services
 
   # Service lifecycle apis
   post   'services/v1/configurations/:id/snapshots'          => 'services#create_snapshot',      :as => :service_create_snapshot,       :id   => /[^\/]+/