Added useful messages to loadin screen

plugins/c9.ide.server/views/flat-load-screen.html

@@ -16,6 +16,12 @@
     document.body.className = "loading " + loadingIde.className;
 
     var messages = [
+        "Share your code by sharing your workspace URL.",
+        "Test your code in different browsers with the Sauce Labs plugin.",
+        "Each workspace is its own Ubuntu virtual machine.",
+        "Run 'dpkg -l' in the terminal to see all packages installed.",
+        "Remember to run your code on port 8080, 8081, or 8082.",
+        "Use the Collaborate panel when collaborationg for optimal teamwork.",
         "It's better up here.",
         "Happy coding!",
         "Everything as you left it.",
@@ -27,6 +33,33 @@
         "Makes your laptop cooler"
     ];
     
+    var mac_keybindings = [
+        "Press Ctrl + Command + Right to select the next instance of a word.",
+        "Press Command + . to show all keyboard commands.",
+        "To rename a variable, highlight it then press Option + Command + R.",
+        "Press Option + W to close your current IDE tab.",
+        "Press Command + D to delete the current line of code",
+        "Press Option + Tab to go to the next IDE tab.",
+        "Press Option + Shift + T to reopen a tab you closed.",
+        "Press Option + T to open a new terminal at any time.",
+        "Press Command + E to search for a file by name."
+    ];
+    
+    var win_keybindings = [
+        "Press Ctrl + Command + Right to select the next instance of a word.",
+        "Press Ctrl + . to show all keyboard commands.",
+        "To rename a variable, highlight it then press Ctrl + Alt + R.",
+        "Press Alt + W to close your current IDE tab.",
+        "Press Ctrl + D to delete the current line of code",
+        "Press Alt + Shift + T to reopen a tab you closed.",
+        "Press Alt + T to open a new terminal at any time.",
+        "Press Ctrl + E to search for a file by name."
+    ];
+    
+    var isMac = (navigator.platform == "MacIntel" || navigator.platform == "Macintosh" || navigator.platform == "MacPPC");
+    var platform_keybindings = isMac ? mac_keybindings : win_keybindings;
+    messages = messages.concat(platform_keybindings);
+    
     var idx = Math.floor(Math.random() * messages.length);
     if (idx == messages.length) idx = messages.length - 1;
     document.querySelector("#loadingide .cool-message").innerHTML =