Fixed build dependencies

This patch accomplishes the following:
- It updates node security, as this depended on a version
  of ansi-styles that was unpublished.
- It updates deprecated uses of yeoman Base and yeoman test.
- It adds mem-fs and mem-fs-editor to dependencies, as those are
  only transiently available in later versions of node/npm.

generators/app/index.js

@@ -11,10 +11,10 @@
   var eslint = require('./lib/component/eslint');
   var gitignore = require('./lib/component/gitignore');
 
-  module.exports = yeoman.generators.Base.extend({
+  module.exports = yeoman.Base.extend({
 
     constructor: function() {
-      yeoman.generators.Base.apply(this, arguments);
+      yeoman.Base.apply(this, arguments);
 
       // Add support for a `--non-interactive` flag
       this.option('non-interactive');

package.json

@@ -19,24 +19,23 @@
   ],
   "author": "OpenStack <openstack-dev@lists.openstack.org> (http://www.openstack.org/)",
   "license": "Apache-2.0",
-  "peerDependencies": {
-    "yo": "^1.7.0"
-  },
   "dependencies": {
     "ini": "^1.3.4",
     "js-yaml": "^3.5.5",
     "q": "^1.4.1",
-    "yeoman-generator": "^0.21.1"
+    "yeoman-generator": "^0.22.5"
   },
   "devDependencies": {
-    "eslint": "1.10.3",
+    "eslint": "^1.10.3",
     "eslint-config-openstack": "1.2.4",
-    "istanbul": "0.4.2",
-    "jasmine": "2.4.1",
+    "istanbul": "^0.4.2",
+    "jasmine": "^2.4.1",
     "karma": "^0.13.22",
     "karma-htmlfile-reporter": "^0.2.2",
-    "nsp": "2.2.1",
-    "yeoman-assert": "2.0.0",
+    "mem-fs": "^1.1.2",
+    "mem-fs-editor": "^2.2.0",
+    "nsp": "^2.3.0",
+    "yeoman-assert": "^2.1.2",
     "yeoman-test": "^1.1.0"
   },
   "repository": "https://github.com/krotscheck/generator-openstack"

spec/app/index.js

@@ -2,7 +2,7 @@
   'use strict';
   var path = require('path');
   var assert = require('yeoman-assert');
-  var helpers = require('yeoman-generator').test;
+  var helpers = require('yeoman-test');
 
   var generator = path.join(__dirname, '../../generators/app');
   var modules = ['gerrit', 'license', 'editorconfig'];