Commands as separate classes

Each command is now in its own class in the 'Commands' namespace, and
loaded through reflection.

MinecraftClient/Commands/Set.cs

@@ -0,0 +1,31 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace MinecraftClient.Commands
+{
+    public class Set : Command
+    {
+        public override string CMDName { get { return "set"; } }
+        public override string CMDDesc { get { return "set varname=value: set a custom %variable%."; } }
+
+        public override string Run(McTcpClient handler, string command)
+        {
+            if (hasArg(command))
+            {
+                string[] temp = getArg(command).Split('=');
+                if (temp.Length > 1)
+                {
+                    if (Settings.setVar(temp[0], getArg(command).Substring(temp[0].Length + 1)))
+                    {
+                        return ""; //Success
+                    }
+                    else return "variable name must be A-Za-z0-9.";
+                }
+                else return CMDDesc;
+            }
+            else return CMDDesc;
+        }
+    }
+}