[brightbox] Add check in update requests to ensure some options have been passed in

lib/fog/brightbox/requests/compute/update_account.rb

@@ -4,6 +4,7 @@ module Fog
       class Real
 
         def update_account(options = {})
+          return nil if options.empty? || options.nil?
           request(
             :expects  => [200],
             :method   => 'PUT',

lib/fog/brightbox/requests/compute/update_api_client.rb

@@ -5,6 +5,7 @@ module Fog
 
         def update_api_client(identifier, options = {})
           return nil if identifier.nil? || identifier == ""
+          return nil if options.empty? || options.nil?
           request(
             :expects  => [200],
             :method   => 'PUT',

lib/fog/brightbox/requests/compute/update_image.rb

@@ -5,6 +5,7 @@ module Fog
 
         def update_image(identifier, options = {})
           return nil if identifier.nil? || identifier == ""
+          return nil if options.empty? || options.nil?
           request(
             :expects  => [200],
             :method   => 'PUT',

lib/fog/brightbox/requests/compute/update_server.rb

@@ -5,6 +5,7 @@ module Fog
 
         def update_server(identifier, options = {})
           return nil if identifier.nil? || identifier == ""
+          return nil if options.empty? || options.nil?
           request(
             :expects  => [200],
             :method   => 'PUT',

lib/fog/brightbox/requests/compute/update_user.rb

@@ -5,6 +5,7 @@ module Fog
 
         def update_user(identifier, options = {})
           return nil if identifier.nil? || identifier == ""
+          return nil if options.empty? || options.nil?
           request(
             :expects  => [200],
             :method   => 'PUT',