schneems/get_process_mem — pull request #3 by ksoderstrom (2014-04-02 00:30:21+00:00)
Title: Make PSS the default mem_type for linux

PSS is now default for linux. I changed the `mem_type` parameter to a options hash. I'm guessing that nobody is currently using it as 'rss' has been the only valid value, so it shouldn't be a problem.

Also added info about PSS to the README.