[release] Prepare for next development iteration

Change-Id: Iaf92b6968b5f3e11260c34a01a364c667f000328
Refactored HttpEndpoint (GET or POST) objects

Change-Id: I98da608c5612c74524b29061d75cc6ebe2ac81d5
[release] 4.2.1

Change-Id: Idd0e95aa154b9e4879d1bb0a63222fadce05d2eb