add basic, hackish finger functionality

modules/finger/README.md

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+## Finger 
+
+Retrieves user information from a remote server.
+
+### Description
+Uses the ``finger`` command to retrieve limited information on users.
+
+
+### Commands
+###~finger [username]
+Returns the real name of the user specified.
+### Dependencies
+* ``npm install request``

modules/finger/finger.js

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+/**
+ * Module Name: Finger 
+ * Description: Returns the name of users via the Finger protocol
+ */
+var request = require('request'),
+    _ = require('underscore')._,
+    exec = require('child_process').exec;
+
+var finger = function(dbot) {
+    var commands = {
+        '~finger': function(event) {
+            var username = event.params[1];
+            exec("finger -s " + username + "@central.aber.ac.uk",function(error,stdout,stderr){
+                name = stdout.search("Name:");
+                stdout = stdout.substring(name);
+                ret = stdout.search("Dir");
+                stdout = stdout.substring(0,ret);
+                event.reply(stdout);
+            });
+        }
+    };
+    this.commands = commands;
+
+    this.on = 'PRIVMSG';
+};
+
+exports.fetch = function(dbot) {
+    return new finger(dbot);
+};