First round fixes for Elasticache "helpfulness"

Elasticache appears to silently break the connection to the server after
2 minutes and then return a "locally" cached value. This is great for
systems that don't have long, persistent connections, terrible for ones
that do.

like this one.
Merge branch 'dev' of github.com:jrconlin/pushgo into dev
Fixes for Heka integration and Elasticache

* Dump stack on errors TODO: route to heka?
* formatting