Tidy up rawserial node logging

Merge pull request #43 from henols/master

Deals with csv and json payload in a smarter way

Tweak emoncms logo to closer match other styles

Revert "close fix" - seems to cause more hangs on redeploy than before.

Merge pull request #8 from thiseldo/master

twilio node first commit

Copy over "sample" node files freo main project as this is where most…

… people will be adding extra nodes.