Fixed l10n bugs and added zh_CN translation

Some strings were not being localized because the string was already
translated at import time it seems.

Also added Chinese translation with help of Zhanghui

openstack_auth/backend.py

@@ -4,7 +4,7 @@
 import logging
 
 from django.conf import settings
-from django.utils.translation import ugettext as _
+from django.utils.translation import ugettext_lazy as _
 
 from keystoneclient.v2_0 import client as keystone_client
 from keystoneclient import exceptions as keystone_exceptions

openstack_auth/forms.py

@@ -2,7 +2,7 @@
 from django.conf import settings
 from django.contrib.auth import authenticate
 from django.contrib.auth.forms import AuthenticationForm
-from django.utils.translation import ugettext as _
+from django.utils.translation import ugettext_lazy as _
 from django.views.decorators.debug import sensitive_variables
 
 from .exceptions import KeystoneAuthException

openstack_auth/locale/zh_CN/LC_MESSAGES/django.po

@@ -0,0 +1,55 @@
+# SOME DESCRIPTIVE TITLE.
+# Copyright (C) YEAR THE PACKAGE'S COPYRIGHT HOLDER
+# This file is distributed under the same license as the PACKAGE package.
+# FIRST AUTHOR <EMAIL@ADDRESS>, YEAR.
+#
+#, fuzzy
+msgid ""
+msgstr ""
+"Project-Id-Version: PACKAGE VERSION\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2013-01-25 13:41+0800\n"
+"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
+"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
+"Language-Team: LANGUAGE <LL@li.org>\n"
+"Language: \n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+"Plural-Forms: nplurals=1; plural=0\n"
+
+#: backend.py:30
+msgid "The authentication token issued by the Identity service has expired."
+msgstr "身份验证已过期。"
+
+#: backend.py:76
+msgid "Invalid user name or password."
+msgstr "无效的用户名或密码。"
+
+#: backend.py:81
+msgid "An error occurred authenticating. Please try again later."
+msgstr "验证发生错误。请稍后再试一次。"
+
+#: backend.py:95
+msgid "Unable to retrieve authorized projects."
+msgstr "无法检索授权的项目。"
+
+#: backend.py:100
+msgid "You are not authorized for any projects."
+msgstr "您未被任何项目授权。"
+
+#: backend.py:119
+msgid "Unable to authenticate to any available projects."
+msgstr "无法跟可用的项目验证通过。"
+
+#: forms.py:20
+msgid "Region"
+msgstr ""
+
+#: forms.py:21
+msgid "User Name"
+msgstr "用户名"
+
+#: forms.py:22
+msgid "Password"
+msgstr "密码"