Support basic validation for JSON files according to the
draft http://tools.ietf.org/html/draft-zyp-json-schema-03.
This is not a complete implementation yet, but it should
already be useful, since "type" verification along with
many of the attributes is done.
Change-Id: I364bc98dd92937c5e2ea9cba7e15ed8e03eb9beb
Reviewed-by: Erik Verbruggen <erik.verbruggen@nokia.com>
