showing proper error when user tries to register with an email already registered
don't hide activation error from user
updated documentation.  made central_server_host refer to the actual HTTP_HOST, and only expose it through main/custom_context_processors.py.  Make back-end email run through local_or_ code
updated documentation.  made central_server_host refer to the actual HTTP_HOST, and only expose it through main/custom_context_processors.py.  Make back-end email run through local_or_ code
Merge branch 'urls' of github.com:bcipolli/ka-lite into urls

Conflicts:
	docs/TESTBED.md
Figure out spacing on the github website.
Forgot to change port 8008 and to mention to start the server
removing remote URLs from css we include on local server
small updates per Jamie's comments
small updates per Jamie's comments
Merge branch 'urls' of github.com:bcipolli/ka-lite into urls

Conflicts:
	kalite/registration/models.py
no request object for registrations, so I create one.  There must be a way to get ahold of one, but I don't know it...
hot bugfixes and small context_instance handling issues
reverting back to not using context_instance
added ASCII art logo
Merge pull request #58 from bcipolli/regerr_actual

Fail nicely in user registration / login on central server
Merge pull request #74 from bcipolli/local_css_urls

Use local URLs for resources in khan-site.css
Merge pull request #75 from mrshu/asciiart_logo

added ASCII art logo
updating link from private repo to learningequality repo
migrate from local_or_ to getattr