[release] Prepare for next development iteration

Change-Id: I0c85e39e1b9bc35cc327871f53ce2045b79cf694
Added factory method to create execute responses with sessionId
- This is required for new capability of creating sessions using execute commands

Change-Id: I31bf5e37bcbe9de3b540a61b231c486aa8a5f14a
[release] 4.2.1

Change-Id: I706b03963738e03fa1c16b693fcd78bfbd5e9768