Updated location of stats.js for Debian under npm install

Backends value should actually be ./backends/graphite, but not sure if that's new for my version of statsd
Fixed var reference; JSON-encoding extra config vars to support graphite sub-options
Merge commit 'e67043bdd95e56407abe68752280d7877b88984e'

Conflicts:
	manifests/params.pp
	templates/localConfig.js.erb