Initial working REST-POST from scheduler

Change-Id: Iebbd030c79315c2f04fb5fe6cac4a8a18e0dce33
Signed-off-by: Jeremy Ho <jujaga@gmail.com>
Refined RESTful POST in e2e scheduler

Change-Id: I6482e1eb376ba96e40559bdce1dd5ff33d9937ba
Signed-off-by: Jeremy Ho <jujaga@gmail.com>