fix a couple typos

lib/fog/aws/models/ec2/addresses.rb

@@ -24,7 +24,7 @@ module Fog
           }.merge!(attributes))
           data['addressesSet'].each do |address|
             addresses << Fog::AWS::EC2::Address.new({
-              :addresses  => self,
+              :addresses  => addresses,
               :connection => connection
             }.merge!(address))
           end

lib/fog/collection.rb

@@ -32,7 +32,7 @@ module Fog
       for member in self
         data << "#{member.inspect},"
       end
-      data.chop!
+      data.chop! unless self.empty?
       data << "]>"
     end
 

lib/fog/rackspace/requests/servers/get_servers_details.rb

@@ -4,7 +4,7 @@ unless Fog.mocking?
     module Rackspace
       class Servers
 
-        # List all servers (IDs and names only)
+        # List all servers details
         #
         # ==== Returns
         # * response<~Fog::AWS::Response>:
@@ -23,7 +23,7 @@ unless Fog.mocking?
         #     * 'metadata'<~Hash> - metadata
         def get_servers_details
           request(
-            :expects  => 200,
+            :expects  => [200, 203],
             :method   => 'GET',
             :path     => 'servers/detail.json'
           )