Removing used files

Change-Id: I335f7388d74646eb9b29ba36c7afb9ed60c6e9db
Signed-off-by: José Bollo <jose.bollo@open.eurogiciel.org>
Improvement of comments

and also renaming keys to fields for parser terminology

Change-Id: Ia36015f5f09623e61d9e42bd8a8d6ec66d679b5d
Signed-off-by: José Bollo <jose.bollo@open.eurogiciel.org>
New examples

Change-Id: I9a0f964dcf9f548a03ff05482692d8134979bd6b
Signed-off-by: José Bollo <jose.bollo@open.eurogiciel.org>