Added new JSON calls for configuring output after impulse

/json/device/setOutputAfterImpulse?dsuid=xyz&output=(on|off|retain) /json/device/getOutputAfterImpulse

Build triggered.

Build finished. Tests PASSED. Build results available at: http://dsjenkins.cloudapp.net/jenkins/job/dSS%20MR/122/

Status changed to merged

mentioned in commit 76b2b6e1