For e1.4.0
Should fix the issue with ending the merc contract

For e1.4.1
Should fix the issue with ending the merc contract

Added Notification Icon
Fixed the problem when ending the contract didn't make the player independent
Fixed color problem when ending contract

Adapted for e1.3

Non-independent fix for e1.0.5

Removed notification_illustration_mercenarycontractexpired.png
Added try/catch so the game won't crash if GUI folder is missing. Mod will still work, just with pink textures.
Added statistics log when leaving, replicating vanillas code

Fixed crash when creating a new Campaign