title: cx_freeze is not applying my icon
body: <p>I can't seem to add my icon to the executable. I thought maybe my 256 was too large so I had sized it down to a 64 but that didn't seem to be the problem.</p>
  
  <p>Maybe I'm misunderstanding what icon is? I was hoping that my app.exe in the folder would have the icon.ico picture, instead it has the following:
  <a href="https://i.stack.imgur.com/6j4Yz.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/6j4Yz.png" alt="default icon"></a>.</p>
  
  <pre><code>import sys
  from cx_Freeze import setup, Executable
  
  base = None
  if sys.platform == 'win32':
      base = 'Win32GUI'
  
  executables = [
                 Executable('SectionAnalysisTool.py',
                            icon="icon64.ico",
                            base=base)
  ]
  includefiles = ["icon.ico"]
  
  setup(name='name',
        version='0.0',
        description='description',
        author = "author",
        options = {'build_exe': {'include_files':includefiles}},
        executables=executables
        )
  </code></pre>
  
  <p>I am using Windows 7, WinPython-64bit-3.4.4.5Qt5 (I did not build the app through Qt), and I am using the cx_Freeze provided by WinPython. If it matters, I made the icon through snagit</p>