Write some info in README.md, design titlebar, make downloader and very basic instance checker

views/main.html

@@ -3,10 +3,20 @@
 	<head>
 		<meta charset="utf-8">
 		<title>OpenModLauncher</title>
+
+		<link rel="stylesheet" href="../res/css/main.css">
 	</head>
 	<body>
 		<div id="titlebar">
-			
+			<span>OpenModLauncher</span>
+			<div id="window-actions">
+				<div class="window-action" id="window-minimize" onclick="minimizeWindow();">
+
+				</div>
+				<div class="window-action" id="window-close" onclick="closeWindow();">
+
+				</div>
+			</div>
 		</div>
 	</body>
 </html>