Update version to 1.2 beta

[ADD] fill nr_rg and modello37 tags whit 0 if len < 6 due of siamm sp…

…ec requirement.

Remove piva restriction on siamm.beneficiario to fullfill procura di …

…palermo requirements

Minor bug fix and support for SIAMM Palermo + fix download url

[FIX] download url in setup

Upgrade setup, version 1.0.1

Add 1.0 Tag