Example rewrite

[Kent Tenney]

Howdy,

The hotel example in the book-example-rewrite branch now uses terms
like book_room instead of register, and FrontDesk instead of
GuestRegistrar. The doctests pass.

Please let me know if more needs to be done before merging it back
into the main book branch. The current status is confusing to me, I'm
not sure what file I should be editing.

My guess is that I am now done with the book-example-rewrite branch,
and I should wait til Baiju merges it back into book/izca.txt, at
which point the book-example-rewrite branch will go away.

Thanks,
Kent

[Baiju M]

Thank you very much for rewriting the example. I have merged all changes to
my 'book' branch, also abandoned 'book-example-rewrite'.
But I didn't published this yet from site. I will wait for some more
time to do this.
Meanwhile others can also look into the branch and send suggestions, if any.

With thanks and regards,
Baiju M