Fix crash during loading
Fix crash during loading

If the templatetags folder exists and is empty, we need to skip the
module.

This situation can occur in a build server in a git working copy, because
git doesn't know about directories, so if a templatetag is added and
then removed, the directory will stay empty forever

glogiotatidis/django-jinja,akx/django-jinja,akx/django-jinja,glogiotatidis/django-jinja,glogiotatidis/django-jinja,akx/django-jinja,niwinz/django-jinja,glogiotatidis/django-jinja,niwinz/django-jinja,niwinz/django-jinja,akx/django-jinja