Version 0.9.6.1

Mechanics:

-The blacksmith does need iron now to upgrade units instead of gold
-The units upgrade is not longer instant, the blacksmith needs some time to upgrade the unit
-The blacksmith does now upgrade all stats of the unit at once
-Non military units can not longer be upgraded
-The main building does now attack
-Increased the performance when a lot of trees are in the area a lot

Balancing:

-Reduced the archers base health to 250 (before it was 500)
-Reduced the archers base def to 0 (before it was 12)
-Reduced the soldiers base armor to 45 (before it was 50)
-Increased the soldiers base health to 1000 (before it was 900)
-Reduced the healers base health to 200 (before it was 250)
-Reduced the healers base def to 0 (before it was 5)
-Reduced the friendly catapults base health to 300 (before it was 500)
-Increased Günthers armor to 40 (before it was 35)
-Upgrading a unit does now give +50 health (before it was +100)
-The hops farmer does now produce 9 beer per workcycle (before it was 8)
-Made the hops farmer faster

Bugfixes:

-The atk text at the blacksmith did not show the correct value
-The fire elementals projectile got destroyed on ground collission -> they never hit
-The enemies where in the wrong attack state
-some trees could not spawn by itself