Allowed setting of params as k/v pairs.

This is needed for setting the request body for
create/update calls.

lib/fog/serverlove/compute.rb

@@ -47,6 +47,7 @@ module Fog
               "Accept" => "application/json"
             }
           )
+          params[:body] = encode_pairs(params[:options]) unless params[:options].nil?
           response = @connection.request(params)
           
           raise_if_error!(response)
@@ -56,6 +57,11 @@ module Fog
           response
         end
         
+        def encode_pairs(params)
+          params.keys.collect do |key|
+            "#{key} #{params[key]}"
+          end.join("\n")
+        end
 
         def raise_if_error!(response)
           case response.status