Remove custom "extend" method.

Replace with NPM extend.

src/cli/main.js

@@ -13,7 +13,7 @@ Definition of the `main` function.
   var HMR  = require( '../hackmyapi')
     , PKG = require('../../package.json')
     , FS = require('fs')
-    , EXTEND = require('../utils/extend')
+    , EXTEND = require('extend')
     , chalk = require('chalk')
     , PATH = require('path')
     , HACKMYSTATUS = require('../core/status-codes')

src/cli/out.js

@@ -18,7 +18,7 @@ Output routines for HackMyResume.
     , PATH = require('path')
     , LO = require('lodash')
     , FS = require('fs')
-    , EXTEND = require('../utils/extend')
+    , EXTEND = require('extend')
     , HANDLEBARS = require('handlebars')
     , YAML = require('yamljs')
     , printf = require('printf')