Bug 2279 - top level element should be entry and not list

JSON input which contains at top level list entry data is now converted
to normalized node structure with top level element of entry type.

Previous status: top level element element was returned as list which
contained list entries.

Change-Id: Ie632f02819aab5a4dc2512b818c729d1074d98dc
Signed-off-by: Jozef Gloncak <jgloncak@cisco.com>
Merge "Bug 2279 - top level element should be entry and not list" into stable/helium