[rackspace|lb] Added error pages to the model

lib/fog/rackspace/models/load_balancers/load_balancer.rb

@@ -160,6 +160,21 @@ module Fog
           connection.get_load_balancer_usage(identity, options).body
         end
 
+        def error_page
+          requires :identity
+          connection.get_error_page(identity).body['errorpage']['content']
+        end
+
+        def error_page=(content)
+          requires :identity
+          connection.set_error_page identity, content
+        end
+
+        def reset_error_page
+          requires :identity
+          connection.remove_error_page identity
+        end
+
         private
         def create
           requires :name, :protocol, :port, :virtual_ips, :nodes

tests/rackspace/models/load_balancers/load_balancer_tests.rb

@@ -109,6 +109,21 @@ Shindo.tests('Fog::Rackspace::LoadBalancers | load_balancer', ['rackspace']) do
         @instance.disable_session_persistence
       end
 
+      @instance.wait_for { ready? }
+      tests("#error_page").succeeds do
+        @instance.error_page
+      end
+
+      @instance.wait_for { ready? }
+      tests("#error_page = 'asdf'").succeeds do
+        @instance.error_page = 'asdf'
+      end
+
+      @instance.wait_for { ready? }
+      tests("#reset_error_page").succeeds do
+        @instance.reset_error_page
+      end
+
       @instance.wait_for { ready? }
     end