Elide unnecessary fields in the details section of the pd payload
Revert "Elide unnecessary fields in the details section of the pd payload"

This reverts commit 102bf4b9beed18ec371898bbc9e9b495ff09914d.

- Did not mean to push to the gemify branch
Elide unnecessary fields in the details section of the pd payload
Use a property whitelist for fields we include in the PD payload
Merge pull request #62 from librato/feature/slim-pd

Slim down the PagerDuty payload
Merge remote-tracking branch 'origin/gemify'
Version bump to 2.1.0
Regenerate gemspec for version 2.1.0