Merge pull request #1 from udacity/add_requirements_file

Create requirements.txt for easy dependency installation with pip and set up .gitignore
Merge pull request #11 from udacity/make_faq_settings_translatable

Make FAQ admin setting descriptions translateable
Add missing import for tag validation error message
Merge branch 'tag_validation_settings'
Make RequestHolder thread-safe
Merge branch 'threadsafe_requestholder'
Merge branch 'threadsafe_requestholder' into update_django
Access request trough singleton where necessarry
Merge branch 'update_django'

Conflicts:
	forum/actions/node.py