ENYO-2935, ENYO-2999: switch away from node-0.8.x

`setImmediate()` that comes with node-0.10 is a much better & safer
way to catch Zalgo than the various wrappers based on
`process.nextTick()`.

Enyo-DCO-1.1-Signed-off-by: Francois-Xavier KOWALSKI <francois-xavier.kowalski@hp.com>
ENYO-2935, ENYO-2999: drop duplicated `express.bodyParser()` instance

Enyo-DCO-1.1-Signed-off-by: Francois-Xavier KOWALSKI <francois-xavier.kowalski@hp.com>