Fixed vlad.rake to allow TCP or socket

example/vlad.rake

@@ -15,7 +15,7 @@ namespace :vlad do
   set :thin_log_file,      nil
   set :thin_pid_file,      nil
   set :thin_port,          nil
-  set :thin_socket,        "/tmp/thin.sock"
+  set :thin_socket,        nil
   set :thin_prefix,        nil
   set :thin_servers,       2
   set :thin_user,          nil
@@ -24,10 +24,13 @@ namespace :vlad do
 configuration is set via the thin_* variables.".cleanup
 
   remote_task :setup_app, :roles => :app do
+
+    raise(ArgumentError, "Please provide either thin_socket or thin_port") if thin_port.nil? && thin_socket.nil?
+
     cmd = [
            "#{thin_command} config",
            "-s #{thin_servers}",
-           "-S #{thin_socket}",
+           ("-S #{thin_socket}" if thin_socket),
            "-e #{thin_environment}",
            "-a #{thin_address}",
            "-c #{current_path}",
@@ -58,4 +61,4 @@ configuration is set via the thin_* variables.".cleanup
   remote_task :stop_app, :roles => :app do
     run thin("stop -s #{thin_servers}")
   end
-end
+end