[minor] implement .send()

Author: Cam Pedersen

scp.js

@@ -10,8 +10,18 @@ var scp = module.exports = {};
  * Transfer a file to a remote host
  */
 scp.send = function (options, cb) {
-  exec ('scp ', function () {
-    cb(arguments);
+  var command = [
+    'scp',
+    '-r',
+    options.file,
+    options.host + ':' + options.path,
+  ];
+  exec(command.join(' '), function (err, stdout, stderr) {
+    if (cb) {
+      cb(err, stdout, stderr);
+    } else {
+      if (err) throw new Error(err);
+    }
   });
 }