Fix file_path in diskstat decoder example
Merge pull request #1047 from ecnahc515/fix_diskstat_example

Fix file_path in diskstat decoder example
Merge remote-tracking branch 'origin/dev' into dev
Pull in lua_sandbox with no limit caps
Fix type in docs
Merge pull request #1048 from mozilla-services/remove_sandbox_cap

Remove sandbox cap
Clarify that cpu, disk, and mem stat decoders are Linux only, clarify
the message format expected by cpu, disk, and mem stat filters,
and lots of tweaks to get rid of Sphinx warning messages.
Use the new decoder file names in the tests.
Merge pull request #1049 from mozilla-services/doc-tweaks-linux-only

Doc tweaks linux only