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Merge remote-tracking branch 'origin/master'

Conflicts:
	src/jp/ktc/janken/AIJankenPlayer.java
	src/jp/ktc/janken/HumanJankenPlayer.java
	src/jp/ktc/janken/JankenGame01.java
	src/jp/ktc/janken/JankenPlayer.java
	src/jp/ktc/janken/JankenReferee.java