Define and implement packaging strategy

[jonathanrocher]

Some options:

• wix based like for Reveal
• cxfreeze
• Pyinstaller

[jonathanrocher]

@corranwebster pyinstaller might be a good option.

[corranwebster]

I have a PyInstaller hook working for pure Pyface, and a strategy that should work for writing hooks for other ETS packages. Brief write-up in this Pyface issue: enthought/pyface#350 (comment)

Even if this doesn't get rolled into ETS releases before the tutorial, we can provide the hook files as part of the tutorial.