sheetchecked is broken in dev/QA -- looks like a Django problem

the sheetchecker is an integral part of how we accept listings.
that said, it's fine to push-and-patch, since providers can
temporarily use any sheetchecker e.g. footprint2009dev, qa, etc.
(I'm reporting as Critical, because once we push from QA=>prod,
there will be no working instances).

from the logs...

06-18 03:18PM 29.375
<class 'django.template.InvalidTemplateLibrary'>: Could not load template 
library from templatetags.dateutils, No module named dateutils
Traceback (most recent call last):
  File 
"/base/data/home/apps/footprint2009dev/1.334299076755890348/sheetchecker/ma
in.py", line 40, in <module>
    template.register_template_library('templatetags.dateutils')
  File 
"/base/python_lib/versions/1/google/appengine/ext/webapp/template.py", line 
194, in register_template_library
    django.template.add_to_builtins(package_name)
  File "/base/python_lib/versions/third_party/django-
0.96/django/template/__init__.py", line 915, in add_to_builtins
    builtins.append(get_library(module_name))
  File "/base/python_lib/versions/third_party/django-
0.96/django/template/__init__.py", line 906, in get_library
    raise InvalidTemplateLibrary, "Could not load template library from %s, 
%s" % (module_name, e)

works:
http://www.allforgood.org/sheetchecker/check?
url=http%3A%2F%2Fspreadsheets.google.com%2Fccc%3Fkey%3Dr3QKvSyCycrHDNTyyl_V
Eqg%26hl%3Den

500 error:
http://footprint2009dev.appspot.com//sheetchecker/check?
url=http%3A%2F%2Fspreadsheets.google.com%2Fccc%3Fkey%3Dr3QKvSyCycrHDNTyyl_V
Eqg%26hl%3Den

http://footprint2009qa.appspot.com//sheetchecker/check?
url=http%3A%2F%2Fspreadsheets.google.com%2Fccc%3Fkey%3Dr3QKvSyCycrHDNTyyl_V
Eqg%26hl%3Den

Original issue reported on code.google.com by adam.sah on 18 Jun 2009 at 10:27

asah / footprint2009dev

sheetchecked is broken in dev/QA -- looks like a Django problem #417