Various fixes/improvements to the the extras/csrf_migration_helper.py script
Various fixes/improvements to the the extras/csrf_migration_helper.py script

- Fixed various bugs/oddities with command line parsing
- Find 'include' tags that use single quotes
- Fixed for new style TEMPLATE_LOADERS setting
- Don't silently ignore non-existent paths
- Removed Python-2.3-ism
- Removed an unnecessary loop



git-svn-id: 4f9f921b081c523744c7bf24d959a0db39629563@12267 bcc190cf-cafb-0310-a4f2-bffc1f526a37

sam-tsai/django-old,bfirsh/django-old,mitsuhiko/django,disqus/django-old,alex/django-old,Instagram/django,Smarsh/django,sam-tsai/django-old,bfirsh/django-old,django-nonrel/django-nonrel,mitsuhiko/django,Smarsh/django,django-nonrel/django-nonrel,jamespacileo/django-france,disqus/django-old,mitsuhiko/django,Instagram/django,sam-tsai/django-old,alex/django-old,bfirsh/django-old,skevy/django,alex/django-old,django-nonrel/django-nonrel,skevy/django,jamespacileo/django-france,disqus/django-old,Instagram/django,sam-tsai/django-old,Smarsh/django,jamespacileo/django-france,skevy/django,Smarsh/django