v4.21

- added a better quality CoA for Albany
- added custom CoAs for the following dynasties: de Medici, Leslie, de Lindsay, Trinci, d'Enghien, Sinclair
-> de Sanseverino, Polentano, de la Haya, de Bourbon-La Marche and de Beaumont
- changed the existing custom CoAs for the following dynasties: Gonzaga, Malatesta
- split a junior line of the de Bourbon dynasty into a cadet branch: de Bourbon-La Marche
- added some missing members of the Despencer, de Lindsay and de la Haya dynasties
- added Stefan the First-Crowned's nickname
- added Alp Arslan's nickname
- added William Sinclair
- added Walter Leslie
- added the de Beaumont dynasty (Beaumont-sur-Oise)
- added the Trinci dynasty
- added the de Medici dynasty
- added a few missing Italian characters
- added the barony of Beaumont-sur-Oise in Senlis from 1050.1.1
- tweaked some Arabic and Turkish names
- corrected a Basque name variant
- corrected Vladimir Rasate's name
- corrected the Magyar naming suffix
- updated the title history of Blekinge
- updated the title history of La Marche
- updated the title history of Spoleto
- fixed a broken dynasty in Sicily