Fixed @XmlRootElement typo in JaxbVariablesResponse class
(cherry picked from commit 38d461fd0e2afd2de7c4294ab8a25ff67e946a1c)
BZ-993610 Adding suport for the InsertObjectCommand and similar commands
(cherry picked from commit d825fc594aca030ae2e3a98444e83dff05bd9bcc)