Fixing some smaller issues:
- fixed occasional crashes or low FPS caused by minimap in campaigns
- fixed double information of war declarations
- siege attacks now work properly when multiple sieges active
- remaining food calculation in sieges improved
- fixed: lumber mills do not find resources if number of trees is reduced in options menu
- loan interest costs now shown properly in finance menu
- fixed: building upgrades now replace building model instantly on campaign map
- newsfeed tabs: information now fit into tabs
- fixed overlapping tooltips in city menu
- confirmation of renaming regiments now does not switch to next city
- fixed overlapping windows if historical events are triggered
- text now fits into mercenary tooltip
- population effect on corruption now shown as positive
- preventing running through of opposing regiments in melees
- red barricade timers now hidden if fog of war is activated