Merge: Use new constructors

Merge: Use new constructors

Since c_src is regenerated, new-style-constructors are available in lib and tools.

Most of the job was to just to remove useless `init` and sometime adding a `noinit` or a default value to attributes.

Pull-Request: #866
Reviewed-by: Lucas Bajolet <r4pass@hotmail.com>
Reviewed-by: Alexis Laferrière <alexis.laf@xymus.net>