Add update command

Uses git pull to update to latest commit

commands/update.js

@@ -1,18 +1,28 @@
+const calculateReloaded = require("../util/calculateReloaded");
+const reloadCommands = require("../util/reloadCommands");
+
 module.exports = {
 	name: 'update',
 	description: 'pull changes from master and reload commands',
 	admin: true,
-	execute({message}) { 
+	execute({message, client}) { 
 		let cmd = "git pull";
 		const exec = require("child_process").exec;
-	
 		exec(cmd, (err, stdout, stderr) => {
 			process.stdout.write(stdout);
+			if(stdout.startsWith("Already up to date.")){
+				message.channel.send("Already up to date.\nNo updating needed.")
+			}else{
+				let beforeSize = client.commands.size;
+				reloadCommands(client)
+				let sendText = `${stdout}\nBot updated, and\n${calculateReloaded(beforeSize, client)}`
+				message.channel.send(sendText)
+			}
 			if (err) {
 				message.channel.send("Something went wrong...");
 				console.log(stderr);
 			}
 		});
-
+		
 	}
 };