Avoid crash when datacenter is missing from sensu.dc on /health
Linting in health.js
prefer event source field over client name
source property belongs to event.check, not event
Merge pull request #134 from amdprophet/source_support

Prefer event source field over client name
Merge pull request #129 from palourde/health-stability

Avoid crash when datacenter is missing from sensu.dc on /health
Release 0.2.4