Merge pull request #118 from zijistark/alpha

The Prodigal Son returns.
Retinue fix
Split cultures out into own file
IR fix
Fixed duplicate faction modifier
Again disabled Jewish loan mechanic
Merge pull request #120 from thefinestsieve/beta

Two minor fixes
2.1.2.1 updates
Norman Company modifier fix
Merge pull request #121 from thefinestsieve/beta

Norman Company modifier fix
Actually fix Norman Company this time
Merge pull request #122 from thefinestsieve/beta

Actually fix Norman Company this time
Removed copyrighted image

Will be reverted if permission is granted to use the art
Mechanic which removes Pope's excess piety and cash upon Crusade

... and returns both in full in 4 and 2 months, respectively.