godashboard: support submitting projects with non-ascii names

Fixes #1314.

R=adg, rsc
CC=golang-dev
https://golang.org/cl/3459043

misc/dashboard/godashboard/package.py

@@ -30,6 +30,11 @@ import time
 import urllib2
 import sets
 
+# local imports
+import toutf8
+
+template.register_template_library('toutf8')
+
 # Storage model for package info recorded on server.
 # Just path, count, and time of last install.
 class Package(db.Model):

misc/dashboard/godashboard/project-notify.txt

@@ -5,5 +5,5 @@ Description: {{project.descr}}
 URL: {{project.web_url}}
 
 To edit/approve/delete:
-http://godashboard.appspot.com/project/edit?name={{project.name|urlencode}}
+http://godashboard.appspot.com/project/edit?name={{project.name|toutf8|urlencode}}
 

misc/dashboard/godashboard/toutf8.py

+# Copyright 2010 The Go Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style
+# license that can be found in the LICENSE file.
+
+# This is a Django custom template filter to work around the
+# fact that GAE's urlencode filter doesn't handle unicode strings.
+
+from google.appengine.ext import webapp
+
+register = webapp.template.create_template_register()
+
+@register.filter
+def toutf8(value):
+    return value.encode("utf-8")