Completed documentation

Signed-off-by: Rogiel <rogiel@rogiel.com>

src/main/java/com/l2jserver/game/ProtocolVersion.java

@@ -0,0 +1,49 @@
+package com.l2jserver.game;
+
+/**
+ * Represents the protocol version used by the client
+ * 
+ * @author <a href="http://www.rogiel.com">Rogiel</a>
+ */
+public enum ProtocolVersion {
+	/**
+	 * Release version
+	 */
+	RELEASE(0),
+	/**
+	 * Freya(216)
+	 */
+	FREYA(216, RELEASE),
+	/**
+	 * High5(217)
+	 */
+	HIGH5(217, FREYA);
+
+	public final ProtocolVersion parent;
+	public final int version;
+
+	ProtocolVersion(int version) {
+		this(version, null);
+	}
+
+	ProtocolVersion(int version, ProtocolVersion parent) {
+		this.version = version;
+		this.parent = parent;
+	}
+
+	public boolean supports(ProtocolVersion version) {
+		if (this == version)
+			return true;
+		if (this.parent == null)
+			return false;
+		return this.parent.supports(version);
+	}
+
+	public static ProtocolVersion fromVersion(int version) {
+		for (ProtocolVersion v : values()) {
+			if (v.version == version)
+				return v;
+		}
+		return null;
+	}
+}