Add default case to swtich statements
Merge branch 'master' of github.com:St-Arai/Experiment1-1

Conflicts:
	src/main/java/org/bukkit/material/Button.java
	src/main/java/org/bukkit/material/Door.java
	src/main/java/org/bukkit/material/Ladder.java
	src/main/java/org/bukkit/material/Lever.java
	src/main/java/org/bukkit/material/PistonBaseMaterial.java
	src/main/java/org/bukkit/material/PistonExtensionMaterial.java
	src/main/java/org/bukkit/material/Rails.java
	src/main/java/org/bukkit/material/TrapDoor.java
Merge branch 'master' of github.com:St-Arai/Experiment1-1