Organize codegen-related bits under codegen/*

Author: michaelklishin

.gitmodules

@@ -1,3 +1,3 @@
-[submodule "vendor/rabbitmq-codegen"]
-	path = vendor/rabbitmq-codegen
+[submodule "codegen/rabbitmq-codegen"]
+	path = codegen/rabbitmq-codegen
 	url = git://github.com/rabbitmq/rabbitmq-codegen.git

__init__.py renamed to codegen/__init__.py

@@ -6,7 +6,7 @@
 
 import os, sys, re
 
-sys.path.append(os.path.join("vendor", "rabbitmq-codegen"))
+sys.path.append(os.path.join("codegen", "rabbitmq-codegen"))
 
 from amqp_codegen import *
 try:
@@ -61,7 +61,7 @@ def new_init(self, arg):
 
 # method.accepted_by("server")
 # method.accepted_by("client", "server")
-accepted_by_update = json.loads(file("amqp_0.9.1_changes.json").read())
+accepted_by_update = json.loads(file("codegen/amqp_0.9.1_changes.json").read())
 
 def accepted_by(self, *receivers):
     def get_accepted_by(self):

amqp_0.9.1_changes.json renamed to codegen/amqp_0.9.1_changes.json

@@ -5,14 +5,14 @@ def sh(*args)
   system(*args)
 end
 
-spec = "vendor/rabbitmq-codegen/amqp-rabbitmq-0.9.1.json"
+spec = "codegen/rabbitmq-codegen/amqp-rabbitmq-0.9.1.json"
 unless File.exist?(spec)
   sh "git submodule update --init"
 end
 
 path = "lib/amq/protocol/client.rb"
-sh "./codegen.py client #{spec} #{path}"
+puts "Running ./codegen/codegen.py client #{spec} #{path}"
+sh "./codegen/codegen.py client #{spec} #{path}"
 if File.file?(path)
-  sh "./post-processing.rb #{path}"
   sh "ruby -c #{path}"
 end