fix missing key

Enyo-DCO-1.1-Signed-off-by: Cole Davis <cole.davis@lge.com>
for xhr related sources use the params property to automatically generate the query string

Enyo-DCO-1.1-Signed-off-by: Cole Davis <cole.davis@lge.com>
Merge pull request #432 from enyojs/spot-fixes

Spot fixes

Reviewed-By: Ben Combee (ben.combee@lge.com)