Tie: add some C++ rigor and concision

I wanted to see how Tie would look with instance methods instead of static methods.  I'm looking forward to hearing your opinions.

I recommend starting with tie.hh.

There is no tracker for this.  It's not fully baked and it won't apply to master anyway.

[dak, 2015-07-15 04:54:02]

nine.fierce.ballads@gmail.com writes:

> Reviewers: ,
>
> Description:
> I wanted to see how Tie would look with instance methods instead of
> static methods.  I'm looking forward to hearing your opinions.

Here's a script in progress that currently does way, way too much.

[dak, 2015-07-15 06:03:38]

David Kastrup <dak@gnu.org> writes:

> nine.fierce.ballads@gmail.com writes:
>
>> Reviewers: ,
>>
>> Description:
>> I wanted to see how Tie would look with instance methods instead of
>> static methods.  I'm looking forward to hearing your opinions.
>
> Here's a script in progress that currently does way, way too much.

While I am at it, I should likely include the patches leading up to
this.  Commit messages leave something to be desired...