dewski/glimpse-mongo — pull request #1 by AquaGeek (2013-03-12 20:46:31+00:00)
Title: Mongo 1.8 renamed send_message_with_safe_check

Found this out here: https://github.com/freerange/mongo-rails-instrumentation/commit/823def1de4d4853ea39a0240750ce8a200d65661.

Not sure if all the changes are necessary, but they seem to work for my app.