fix up Rails::Rack::LogTailer to tail the log when the body is closed rather than when its own #call is done.
use Thread.current['request_logger.info'] if env['request_logger.info'] is not available
rails request logging inserts api hammer request logger after Rails::Rack::Logger so that tags are set
if the request logger's logger is a ActiveSupport::TaggedLogging, apply the tags from the request
log airbrake error if present
add activesupport_tagged_logging_tags to request logging processing
just add the request env the event payload, don't need the full request