update docs for enyo.json namespace

Enyo-DCO-1.1-Signed-Off-By: Cole Davis (cole.davis@lge.com)
docs for JsonpRequest

Enyo-DCO-1.1-Signed-Off-By: Cole Davis (cole.davis@lge.com)
update package formatting

Enyo-DCO-1.1-Signed-Off-By: Cole Davis (cole.davis@lge.com)
doc enyo.xhr

Enyo-DCO-1.1-Signed-Off-By: Cole Davis (cole.davis@lge.com)
docs for WebService

Enyo-DCO-1.1-Signed-Off-By: Cole Davis (cole.davis@lge.com)