Add github buttons and routes.
Create and log in new github user if no matching account.
Support creating a new user with gihub, but sessions are broken.
Hook Github to existing user.
Inform user if matching account already exists.
Hide link Github account when linked.
Allow logged out github users to log in.
Increase Github token scope.
Update github token when GH user logs in.
Export as gist (anonymous or user's).
Don't export empty panels.
Fix creating users.
Refactor processors to use config object.
Export gists with correct file extensions.
Refactor the gist panel loopage somewhat.
Gist import into correct processor with refactored processors.
Clean up tips, adding info, error and notification types.
Add github login SQL upgrade files.
Use notification when gist created.
Redirect gist.jsbin to correct gist URL.