Problems with leader in Spanish Campaign

[xaviersancho]

These are the mistakes that I have found in the Spanish Campaign:
- Napoleon and Berthier are not removed the year 1809
- Lannes corps is missing when Napoleon appears in campaign
- Two Berthier are present in year 1809
- When Massena arrives, the messages says "marshal Marmont and his staff".

[Brigade infernale]

These are the mistakes that I have found in the Spanish Campaign:
- Napoleon and Berthier are not removed the year 1809

Fix in the next patch

- Lannes corps is missing when Napoleon appears in campaign
- Two Berthier are present in year 1809
- When Massena arrives, the messages says "marshal Marmont and his staff".

I check that.