Automattic/jetpack — pull request #1403 by enejb (2014-12-12 00:19:21+00:00)
Title: Add a filter so that user can add thier own bots 

This PR tries to address this issue.
https://github.com/Automattic/jetpack/issues/1402

Adding the filter 'jetpack_bot_agents' would allow users to add their own bots that they want to ignore in the stats.

Need to see if this will have any significant performance issues before merging.