Changed mkdir to mkdirs (mkdir -p) (#164)

Author: benswinburne

lib/main.js

@@ -259,7 +259,7 @@ Lambda.prototype._cleanDirectory = function (codeDirectory, callback) {
       throw err;
     }
 
-    fs.mkdir(codeDirectory, function (err) {
+    fs.mkdirs(codeDirectory, function (err) {
       if (err) {
         throw err;
       }
@@ -438,7 +438,7 @@ Lambda.prototype.package = function (program) {
     } catch(err) {
       if (err.code === 'ENOENT') {
         console.log('=> Creating package directory');
-        fs.mkdirSync(program.packageDirectory);
+        fs.mkdirsSync(program.packageDirectory);
       } else {
         throw err;
       }