Add vfs.log to log from client directly to vfs server

plugins/c9.vfs.client/log-service.js

@@ -0,0 +1,10 @@
+
+module.exports = function(vfs, options, register) {
+    register(null, {
+        log: function(message, callback) {
+            console.log("VFSLOG: " + message);
+            console.error("VFSERROR: " + message);
+            callback();
+        }
+    })
+}

plugins/c9.vfs.client/vfs.log.js

@@ -0,0 +1,77 @@
+/** Sends client side logs to vfs via the websocket connection **/
+
+define(function (require, exports, module) {
+    "use strict";
+    
+    main.consumes = ["Plugin", "ext", "c9"];
+    main.provides = ["vfs.log"];
+    return main;
+    
+    function main(options, imports, register) {
+        var Plugin = imports.Plugin; 
+        var c9 = imports.c9;
+        var ext = imports.ext;
+        var plugin = new Plugin("Ajax.org", main.consumes);
+        
+        var loaded = false;
+        var server = null;
+        
+        function load() {
+            if (loaded) return false;
+            loaded = true;
+            
+            ext.loadRemotePlugin("log", {
+                code: require("text!./log-service.js"),
+                redefine: true
+            }, function(err, remote) {
+                if (err) return console.error(err);
+                
+                server = remote;
+            });
+            
+            c9.on("stateChange", function(e) {
+                if (e.state & c9.NETWORK) {
+                    load();
+                }
+                else {
+                    loaded = false;
+                    server = null;
+                }
+            }, plugin);
+            
+        }
+        
+        
+        function log() {
+            if (!server) return console.error("Cannot log, client is offline");
+            
+            var args = Array.prototype.slice.call(arguments);
+            var message = "";
+            args.forEach(function (arg) {
+                if (typeof arg === "object") {
+                    return message += JSON.stringify(arg);
+                }
+                message += arg;
+            });
+                
+            server.log(message);
+        }
+        
+        plugin.on("load", function() {
+            load();
+        });
+        
+        plugin.on("unload", function() {
+            loaded = false;
+            server = null;
+        });
+        
+        plugin.freezePublicAPI({
+            log: log
+        });
+        
+        register(null, {
+            "vfs.log": plugin
+        });
+    }
+})