2/3 Fixed the giant tree bug and the infinite level-up bug

[Content Addition & Specification Changes]

1. Changed the specification so that soldiers placed on turrets are deselected (can be changed from options).
2. Changed the specification so that ranged soldiers placed on turrets automatically become "immobile" (can be changed from options).

[Bug Fixes]

1. Likely fixed the bug where buildings would gigantically grow due to some cause.
2. Likely fixed the infinite level-up bug.