Added the basic files for Loggly appender

appender, example, test
not tested yet!

examples/loggly-appender.js

@@ -0,0 +1,26 @@
+//Note that loggly appender needs node-loggly to work.
+//If you haven't got node-loggly installed, you'll get cryptic
+//"cannot find module" errors when using the loggly appender
+var log4js = require('../lib/log4js')
+, log
+, logmailer
+, i = 0;
+log4js.configure({
+  "appenders": [
+    {
+      type: "console",
+      category: "test"
+    },
+    {
+      "type": "loggly",
+      "token": "12345678901234567890",
+      "subdomain": "your-subdomain",
+      "tags": ["test"],
+      "category": "test"
+    }
+  ]
+});
+
+var logger = log4js.getLogger("test");
+logger.info("Test log message");
+logger.debug("Test log message");

lib/appenders/loggly.js

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+"use strict";
+var layouts = require("../layouts")
+, mailer = require("loggly")
+, os = require('os');
+
+
+/**
+ * Loggly Appender. Sends logging events to Loggly using node-loggly 
+ *
+ * @param config object with loggly configuration data
+ * {
+ *   token: 'your-really-long-input-token',
+ *   subdomain: 'your-subdomain',
+ *   tags: ['loggly-tag1', 'loggly-tag2', .., 'loggly-tagn'] 
+ * }
+ * @param layout a function that takes a logevent and returns a string (defaults to basicLayout).
+ */
+function logglyAppender(config, layout) {
+	layout = layout || layouts.basicLayout;
+
+	var client = loggly.createClient(config);
+
+	
+	return function(loggingEvent) {
+		client.log(layout(loggingEvent));
+	};
+
+}
+
+function configure(config) {
+	var layout;
+	if (config.layout) {
+		layout = layouts.layout(config.layout.type, config.layout);
+	}
+	return logglyAppender(config, layout);
+}
+
+exports.name = "loggly";
+exports.appender = logglyAppender;
+exports.configure = configure;

test/logglyAppender-test.js

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+"use strict";
+var assert = require('assert')
+, vows = require('vows')
+, layouts = require('../lib/layouts')
+, sandbox = require('sandboxed-module');
+
+vows.describe('../lib/appenders/loggly').addBatch({
+  'appender': {
+    topic: function() {
+      var messages = []
+      , fakeLoggly = {
+        log: function(msg) { messages.push(msg); }
+      }
+      , appenderModule = sandbox.require(
+        '../lib/appenders/loggly',
+        {
+          globals: {
+            'loggly': fakeLoggly
+          }
+        }
+      )
+      , appender = appenderModule.appender(layouts.messagePassThroughLayout);
+
+      appender({ data: ["blah"] });
+      return messages;
+    },
+
+    'should output to loggly': function(messages) {
+      assert.equal(messages[0], 'blah');
+    }
+  }
+          
+}).exportTo(module);