serial 初步
Merge branch 'master' of https://github.com/LuciusYu/TownSimulator.git

Conflicts:
	TownSimulator/src/com/TownSimulator/entity/building/School.java
	TownSimulator/src/com/TownSimulator/entity/building/Well.java
	TownSimulator/src/com/TownSimulator/entity/building/WorkableBuilding.java
	TownSimulator/src/com/TownSimulator/ui/UIManager.java