Implemented Players, CpuUsage, RamUsage Commands. Updated README

src/com/mesacarlos/webconsole/json/RamUsage.java

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+package com.mesacarlos.webconsole.json;
+
+import com.google.gson.JsonObject;
+
+public class RamUsage implements JSONOutput {
+	private String message;
+	private int free;
+	private int used;
+	private int max;
+
+	public RamUsage(String message, int free, int used, int max) {
+		this.message = message;
+		this.free = free;
+		this.used = used;
+		this.max = max;
+	}
+
+	@Override
+	public int getStatusCode() {
+		return 1002;
+	}
+
+	@Override
+	public String getMessage() {
+		return message;
+	}
+	
+	/**
+	 * Free amount of RAM, in MB
+	 * @return
+	 */
+	public int getFree() {
+		return free;
+	}
+	
+	/**
+	 * Used amount of RAM, in MB
+	 * @return
+	 */
+	public int getUsed() {
+		return used;
+	}
+	
+	/**
+	 * Max amount of RAM, in MB
+	 * @return
+	 */
+	public int getMax() {
+		return max;
+	}
+
+	@Override
+	public String toJSON() {
+		JsonObject object = new JsonObject();
+		object.addProperty("status", getStatusCode());
+		object.addProperty("statusDescription", "RAM Usage");
+		object.addProperty("free", getFree());
+		object.addProperty("total", getUsed());
+		object.addProperty("max", getMax());
+		object.addProperty("message", getMessage());
+		return object.toString();
+	}
+
+}