Initial refactor from code. Added extra methids, namespaces and
composer.json

Signed-off-by: Josemi Liébana <office@josemi-liebana.com>
Updated composer.json and namespaces

Signed-off-by: Josemi Liébana <office@josemi-liebana.com>
Updated config to use an array instead of an object.
Little bug fix on Request->lastRequestStatus()

Signed-off-by: Josemi Liébana <office@josemi-liebana.com>
Updated folder structure, namespaces and composer.json.

Signed-off-by: Josemi Liébana <office@josemi-liebana.com>