ToER update 2019.1.6

ToER 2019.1.6 update includes:

1. Changes that jars would be attackable with right click or through attack button. Attack response will be also faster than before. 
2. Population increase speed will now be faster if nation has more farms and more remaining population to grow. 
3. Fix that after leaving mercy nation would no longer pay taxes from collected resources.
4. Updated troops and population icons.
5. Archers and arsonists won't chase enemy ravens so intensively as before. Smaller number of them will be chasing instead.