don't call id on nil - fixes #177
move our middleware right after exception middleware (#178)
implement tests for #178
be nice to older rails versions
Bumping to version 3.1.8
Update year in README
just collect id by default (#187)
Update README.md
Serve 'airbrake_notifier.js' from own server
Strip any protocol from asset_path
Just use protocol-relative URL for notifier js
Include airbrake_notifier via javascript_include_tag
Add airbrake_current_user to javascript error notifications
Allow sending flexible user attributes